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authID Inc. – ‘10-K’ for 12/31/23 – ‘EX-101.LAB’

On:  Wednesday, 3/20/24, at 4:06pm ET   ·   For:  12/31/23   ·   Accession #:  1213900-24-24363   ·   File #:  1-40747

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  As Of               Filer                 Filing    For·On·As Docs:Size             Issuer                      Filing Agent

 3/20/24  authID Inc.                       10-K       12/31/23   79:7.8M                                   EdgarAgents LLC/FA

Annual Report   —   Form 10-K   —   SEA’34

Filing Table of Contents

Document/Exhibit                   Description                      Pages   Size 

 1: 10-K        Annual Report                                       HTML   1.48M 
 2: EX-23.1     Consent of Independent Registered Public            HTML     22K 
                Accounting Firm                                                  
 3: EX-31.1     Certification -- §302 - SOA'02                      HTML     27K 
 4: EX-31.2     Certification -- §302 - SOA'02                      HTML     27K 
 5: EX-32.1     Certification -- §906 - SOA'02                      HTML     25K 
11: R1          Cover                                               HTML    100K 
12: R2          Audit Information                                   HTML     28K 
13: R3          Consolidated Balance Sheets                         HTML    121K 
14: R4          Consolidated Balance Sheets (Parentheticals)        HTML     33K 
15: R5          Consolidated Statements of Operations               HTML    115K 
16: R6          Consolidated Statements of Operations               HTML     34K 
                (Parentheticals)                                                 
17: R7          Consolidated Statements of Comprehensive Loss       HTML     42K 
18: R8          Consolidated Statements of Changes in               HTML    111K 
                Stockholders? Equity                                             
19: R9          Consolidated Statements of Cash Flows               HTML    152K 
20: R10         Description of Business and Summary of Significant  HTML     74K 
                Accounting Policies                                              
21: R11         Other Current Assets and Other Assets               HTML     32K 
22: R12         Property and Equipment, Net                         HTML     31K 
23: R13         Intangible Assets, Net (Other than Goodwill)        HTML     47K 
24: R14         Accounts Payable and Accrued Expenses               HTML     28K 
25: R15         Working Capital Facility                            HTML     30K 
26: R16         Convertible Notes Payable                           HTML     39K 
27: R17         Related Party Transactions                          HTML     53K 
28: R18         Stockholders' Equity                                HTML     76K 
29: R19         Income Taxes                                        HTML     43K 
30: R20         Discontinued Operations and Assets Held for Sale    HTML     84K 
31: R21         Commitments and Contingencies                       HTML     30K 
32: R22         Segment Information                                 HTML     29K 
33: R23         Pay vs Performance Disclosure                       HTML     35K 
34: R24         Insider Trading Arrangements                        HTML     29K 
35: R25         Accounting Policies, by Policy (Policies)           HTML    105K 
36: R26         Description of Business and Summary of Significant  HTML     32K 
                Accounting Policies (Tables)                                     
37: R27         Other Current Assets and Other Assets (Tables)      HTML     32K 
38: R28         Property and Equipment, Net (Tables)                HTML     29K 
39: R29         Intangible Assets, Net (Other than Goodwill)        HTML     47K 
                (Tables)                                                         
40: R30         Accounts Payable and Accrued Expenses (Tables)      HTML     28K 
41: R31         Convertible Notes Payable (Tables)                  HTML     28K 
42: R32         Stockholders' Equity (Tables)                       HTML     62K 
43: R33         Income Taxes (Tables)                               HTML     41K 
44: R34         Discontinued Operations and Assets Held for Sale    HTML     87K 
                (Tables)                                                         
45: R35         Description of Business and Summary of Significant  HTML    150K 
                Accounting Policies (Details)                                    
46: R36         Description of Business and Summary of Significant  HTML     30K 
                Accounting Policies (Details) - Schedule of                      
                Deferred Contract Cost Activity                                  
47: R37         Description of Business and Summary of Significant  HTML     33K 
                Accounting Policies (Details) - Schedule of                      
                Diluted Loss per Share                                           
48: R38         Other Current Assets and Other Assets (Details) -   HTML     34K 
                Schedule of Other Current Assets                                 
49: R39         Other Current Assets and Other Assets (Details) -   HTML     30K 
                Schedule of Other Assets                                         
50: R40         Property and Equipment, Net (Details)               HTML     25K 
51: R41         Property and Equipment, Net (Details) - Schedule    HTML     39K 
                of Property and Equipment                                        
52: R42         Intangible Assets, Net (Other than Goodwill)        HTML     48K 
                (Details) - Schedule of Intangible Assets                        
53: R43         Intangible Assets, Net (Other than Goodwill)        HTML     40K 
                (Details) - Schedule of Future Amortization of                   
                Intangible Assets                                                
54: R44         Accounts Payable and Accrued Expenses (Details) -   HTML     32K 
                Schedule of Accounts Payable and Accrued Expenses                
55: R45         Working Capital Facility (Details)                  HTML     51K 
56: R46         Convertible Notes Payable (Details)                 HTML     83K 
57: R47         Convertible Notes Payable (Details) - Schedule of   HTML     33K 
                the Convertible Notes Payable Outstanding                        
58: R48         Convertible Notes Payable (Details) - Schedule of   HTML     25K 
                the Convertible Notes Payable Outstanding                        
                (Parentheticals)                                                 
59: R49         Related Party Transactions (Details)                HTML    325K 
60: R50         Stockholders' Equity (Details)                      HTML    238K 
61: R51         Stockholders' Equity (Details) - Schedule of        HTML     45K 
                Company?s Warrant Activity                                       
62: R52         Stockholders' Equity (Details) - Schedule of Grant  HTML     38K 
                Date Fair Market Value of Options Granted                        
63: R53         Stockholders' Equity (Details) - Schedule of        HTML     71K 
                Activity Related to Stock Options                                
64: R54         Stockholders' Equity (Details) - Schedule of Stock  HTML     47K 
                Option Information                                               
65: R55         Income Taxes (Details)                              HTML     34K 
66: R56         Income Taxes (Details) - Schedule of Company?s      HTML     31K 
                Loss Before Income Taxes from Us and Foreign                     
                Sources                                                          
67: R57         Income Taxes (Details) - Schedule of the U.S.       HTML     41K 
                Federal Statutory Tax Rate and the Company?s                     
                Effective Tax Rate                                               
68: R58         Income Taxes (Details) - Schedule of Deferred Tax   HTML     44K 
                Assets and Liabilities                                           
69: R59         Discontinued Operations and Assets Held for Sale    HTML     50K 
                (Details)                                                        
70: R60         Discontinued Operations and Assets Held for Sale    HTML     44K 
                (Details) - Schedule of Assets and Liabilities of                
                the MultiPay Sale and Consideration Received                     
71: R61         Discontinued Operations and Assets Held for Sale    HTML     81K 
                (Details) - Schedule of Operations of Cards Plus                 
                and MultiPay                                                     
72: R62         Discontinued Operations and Assets Held for Sale    HTML     52K 
                (Details) - Schedule of Discontinued Operations                  
                Assets Held for Sale Criteria for Cards Plus and                 
                the MultiPay Operations                                          
73: R63         Discontinued Operations and Assets Held for Sale    HTML     48K 
                (Details) - Schedule of Cash Flow Activity Related               
                to Discontinued Operations                                       
74: R64         Commitments and Contingencies (Details)             HTML     42K 
76: XML         IDEA XML File -- Filing Summary                      XML    149K 
79: XML         XBRL Instance -- ea0201335-10k_authidinc_htm         XML   1.40M 
75: EXCEL       IDEA Workbook of Financial Report Info              XLSX    179K 
 7: EX-101.CAL  XBRL Calculations -- auid-20231231_cal               XML    144K 
 8: EX-101.DEF  XBRL Definitions -- auid-20231231_def                XML    970K 
 9: EX-101.LAB  XBRL Labels -- auid-20231231_lab                     XML   1.81M 
10: EX-101.PRE  XBRL Presentations -- auid-20231231_pre              XML    909K 
 6: EX-101.SCH  XBRL Schema -- auid-20231231                         XSD    233K 
77: JSON        XBRL Instance as JSON Data -- MetaLinks              589±   853K 
78: ZIP         XBRL Zipped Folder -- 0001213900-24-024363-xbrl      Zip    404K

‘EX-101.LAB’   —   XBRL Labels — auid-20231231_lab

This Exhibit is an XBRL File.

                                                                                                                                                                                
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_Assets_lbl" xml:lang="en-US"> Total assets </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_LiabilitiesCurrent_lbl" xml:lang="en-US"> Total current liabilities </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_Liabilities_lbl" xml:lang="en-US"> Total liabilities </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Liabilities" xlink:to="us-gaap_Liabilities_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_StockholdersEquity" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockholdersEquity"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_StockholdersEquity_lbl" xml:lang="en-US"> Total stockholders’ equity </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquity" xlink:to="us-gaap_StockholdersEquity_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_StockholdersEquity_lbl0" xml:lang="en-US"> Balances </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquity" xlink:to="us-gaap_StockholdersEquity_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_StockholdersEquity_lbl1" xml:lang="en-US"> Balances </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquity" xlink:to="us-gaap_StockholdersEquity_lbl1"/>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity_lbl" xml:lang="en-US"> Total liabilities and stockholders’ equity </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesAndStockholdersEquity" xlink:to="us-gaap_LiabilitiesAndStockholdersEquity_lbl"/>
<loc xlink:type="locator" xlink:label="srt_ProductOrServiceAxis" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ProductOrServiceAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_ProductOrServiceAxis_lbl" xml:lang="en-US"> Product and Service [Axis] </label>
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<loc xlink:type="locator" xlink:label="us-gaap_OperatingExpenses" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingExpenses"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_OperatingExpenses_lbl" xml:lang="en-US"> Total operating expenses </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingExpenses" xlink:to="us-gaap_OperatingExpenses_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_OperatingIncomeLoss" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingIncomeLoss"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_OperatingIncomeLoss_lbl" xml:lang="en-US"> Loss from continuing operations </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingIncomeLoss" xlink:to="us-gaap_OperatingIncomeLoss_lbl"/>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_OtherNonoperatingIncomeExpense_lbl" xml:lang="en-US"> Other (expense) income, net </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherNonoperatingIncomeExpense" xlink:to="us-gaap_OtherNonoperatingIncomeExpense_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_lbl" xml:lang="en-US"> Loss from continuing operations before income taxes </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_IncomeLossFromContinuingOperations_lbl0" xml:lang="en-US"> Loss from operation </label>
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<loc xlink:type="locator" xlink:label="us-gaap_DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax_lbl" xml:lang="en-US"> Total gain (loss) from discontinued operations </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax_lbl0" xml:lang="en-US"> Net gain on sale of a discontinued operation </label>
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<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax" xlink:to="us-gaap_DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax_lbl1"/>
<loc xlink:type="locator" xlink:label="us-gaap_NetIncomeLoss" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetIncomeLoss"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_NetIncomeLoss_lbl" xml:lang="en-US"> Net loss </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetIncomeLoss" xlink:to="us-gaap_NetIncomeLoss_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_NetIncomeLoss_lbl0" xml:lang="en-US"> Net loss </label>
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<loc xlink:type="locator" xlink:label="us-gaap_ComprehensiveIncomeNetOfTax" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ComprehensiveIncomeNetOfTax"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_ComprehensiveIncomeNetOfTax_lbl" xml:lang="en-US"> Comprehensive loss </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ComprehensiveIncomeNetOfTax" xlink:to="us-gaap_ComprehensiveIncomeNetOfTax_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_CommonStockSharesOutstanding" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockSharesOutstanding"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl" xml:lang="en-US"> Balances (in Shares) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockSharesOutstanding" xlink:to="us-gaap_CommonStockSharesOutstanding_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl0" xml:lang="en-US"> Balances (in Shares) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockSharesOutstanding" xlink:to="us-gaap_CommonStockSharesOutstanding_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl1" xml:lang="en-US"> Common stock, shares outstanding </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockSharesOutstanding" xlink:to="us-gaap_CommonStockSharesOutstanding_lbl1"/>
<loc xlink:type="locator" xlink:label="us-gaap_StatementEquityComponentsAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementEquityComponentsAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StatementEquityComponentsAxis_lbl" xml:lang="en-US"> Equity Components [Axis] </label>
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<loc xlink:type="locator" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl" xml:lang="en-US"> Net cash flows from operating activities </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl0" xml:lang="en-US"> Fund operations </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl0"/>
<loc xlink:type="locator" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl" xml:lang="en-US"> Net cash flows from investing activities </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInInvestingActivities_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl" xml:lang="en-US"> Net cash flows from financing activities </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_lbl" xml:lang="en-US"> Net Change in Cash </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" xlink:to="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl" xml:lang="en-US"> Cash, Beginning of the Year </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:to="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl0" xml:lang="en-US"> Cash, End of the Year </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:to="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl0"/>
<loc xlink:type="locator" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsDisposalGroupIncludingDiscontinuedOperations" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsDisposalGroupIncludingDiscontinuedOperations"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsDisposalGroupIncludingDiscontinuedOperations_lbl" xml:lang="en-US"> Cash, Beginning of the Year- Discontinued Operations </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsDisposalGroupIncludingDiscontinuedOperations" xlink:to="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsDisposalGroupIncludingDiscontinuedOperations_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedPeriodEndLabel" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsDisposalGroupIncludingDiscontinuedOperations_lbl0" xml:lang="en-US"> Cash, End of the Year - Discontinued Operations </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsDisposalGroupIncludingDiscontinuedOperations" xlink:to="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsDisposalGroupIncludingDiscontinuedOperations_lbl0"/>
<loc xlink:type="locator" xlink:label="us-gaap_AccountingPoliciesAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccountingPoliciesAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccountingPoliciesAbstract_lbl" xml:lang="en-US"> Description of Business and Summary of Significant Accounting Policies [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="us-gaap_AccountingPoliciesAbstract_lbl"/>
<loc xlink:type="locator" xlink:label="auid_ScheduleOfDeferredContractCostActivityAbstract" xlink:href="auid-20231231.xsd#auid_ScheduleOfDeferredContractCostActivityAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_ScheduleOfDeferredContractCostActivityAbstract_lbl" xml:lang="en-US"> Schedule of Deferred Contract Cost Activity [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_ScheduleOfDeferredContractCostActivityAbstract" xlink:to="auid_ScheduleOfDeferredContractCostActivityAbstract_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DeferredCostsCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredCostsCurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_DeferredCostsCurrent_lbl" xml:lang="en-US"> Carrying Value at December 31, 2022 </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredCostsCurrent" xlink:to="us-gaap_DeferredCostsCurrent_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_DeferredCostsCurrent_lbl0" xml:lang="en-US"> Carrying Value at December 31, 2023 </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredCostsCurrent" xlink:to="us-gaap_DeferredCostsCurrent_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DeferredCostsCurrent_lbl1" xml:lang="en-US"> Deferred contract costs </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredCostsCurrent" xlink:to="us-gaap_DeferredCostsCurrent_lbl1"/>
<loc xlink:type="locator" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_lbl" xml:lang="en-US"> Antidilutive Securities [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis" xlink:to="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_OtherAssetsAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherAssetsAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherAssetsAbstract_lbl" xml:lang="en-US"> Other Current Assets and Other Assets [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherAssetsAbstract" xlink:to="us-gaap_OtherAssetsAbstract_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_PrepaidExpenseAndOtherAssetsCurrentAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrentAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PrepaidExpenseAndOtherAssetsCurrentAbstract_lbl" xml:lang="en-US"> Schedule of Other Current Assets [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PrepaidExpenseAndOtherAssetsCurrentAbstract" xlink:to="us-gaap_PrepaidExpenseAndOtherAssetsCurrentAbstract_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_OtherAssetsCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherAssetsCurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_OtherAssetsCurrent_lbl" xml:lang="en-US"> Total other current assets </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherAssetsCurrent" xlink:to="us-gaap_OtherAssetsCurrent_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OtherAssetsCurrent_lbl0" xml:lang="en-US"> Other current assets </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherAssetsCurrent" xlink:to="us-gaap_OtherAssetsCurrent_lbl0"/>
<loc xlink:type="locator" xlink:label="us-gaap_DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureAbstract_lbl" xml:lang="en-US"> Schedule of other assets [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureAbstract" xlink:to="us-gaap_DeferredCostsCapitalizedPrepaidAndOtherAssetsDisclosureAbstract_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_PropertyPlantAndEquipmentNetAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentNetAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PropertyPlantAndEquipmentNetAbstract_lbl" xml:lang="en-US"> Property and Equipment, Net [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentNetAbstract" xlink:to="us-gaap_PropertyPlantAndEquipmentNetAbstract_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PropertyPlantAndEquipmentByTypeAxis_lbl" xml:lang="en-US"> Long-Lived Tangible Asset [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:to="us-gaap_PropertyPlantAndEquipmentByTypeAxis_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_lbl" xml:lang="en-US"> Intangible Assets, Net (Other than Goodwill) [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:to="us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ImpairedIntangibleAssetsLineItems" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ImpairedIntangibleAssetsLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ImpairedIntangibleAssetsLineItems_lbl" xml:lang="en-US"> Schedule of intangible assets, net [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ImpairedIntangibleAssetsLineItems" xlink:to="us-gaap_ImpairedIntangibleAssetsLineItems_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_FiniteLivedIntangibleAssetsNet" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:label="us-gaap_FiniteLivedIntangibleAssetsNet_lbl" xml:lang="en-US"> Carrying Value, Beginning </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FiniteLivedIntangibleAssetsNet" xlink:to="us-gaap_FiniteLivedIntangibleAssetsNet_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_FiniteLivedIntangibleAssetsNet_lbl0" xml:lang="en-US"> Carrying Value, Ending </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FiniteLivedIntangibleAssetsNet" xlink:to="us-gaap_FiniteLivedIntangibleAssetsNet_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_FiniteLivedIntangibleAssetsNet_lbl1" xml:lang="en-US"> Total </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FiniteLivedIntangibleAssetsNet" xlink:to="us-gaap_FiniteLivedIntangibleAssetsNet_lbl1"/>
<loc xlink:type="locator" xlink:label="us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_lbl" xml:lang="en-US"> Finite-Lived Intangible Assets by Major Class [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:to="us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_lbl"/>
<loc xlink:type="locator" xlink:label="auid_ScheduleOfFutureAmortizationOfIntangibleAssetsAbstract" xlink:href="auid-20231231.xsd#auid_ScheduleOfFutureAmortizationOfIntangibleAssetsAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_ScheduleOfFutureAmortizationOfIntangibleAssetsAbstract_lbl" xml:lang="en-US"> Schedule of Future Expected Amortization of Intangible Assets [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_ScheduleOfFutureAmortizationOfIntangibleAssetsAbstract" xlink:to="auid_ScheduleOfFutureAmortizationOfIntangibleAssetsAbstract_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_PayablesAndAccrualsAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PayablesAndAccrualsAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PayablesAndAccrualsAbstract_lbl" xml:lang="en-US"> Accounts Payable and Accrued Expenses [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PayablesAndAccrualsAbstract" xlink:to="us-gaap_PayablesAndAccrualsAbstract_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_lbl" xml:lang="en-US"> Total </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent" xlink:to="us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_lbl0" xml:lang="en-US"> Accounts payable and accrued expenses </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent" xlink:to="us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_lbl0"/>
<loc xlink:type="locator" xlink:label="auid_WorkingCapitalFaciltiyAbstract" xlink:href="auid-20231231.xsd#auid_WorkingCapitalFaciltiyAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_WorkingCapitalFaciltiyAbstract_lbl" xml:lang="en-US"> Working Capital Facility [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_WorkingCapitalFaciltiyAbstract" xlink:to="auid_WorkingCapitalFaciltiyAbstract_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ConvertibleLongtermNotesPayableCurrentAndNoncurrentAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConvertibleLongtermNotesPayableCurrentAndNoncurrentAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ConvertibleLongtermNotesPayableCurrentAndNoncurrentAbstract_lbl" xml:lang="en-US"> Convertible Notes Payable [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConvertibleLongtermNotesPayableCurrentAndNoncurrentAbstract" xlink:to="us-gaap_ConvertibleLongtermNotesPayableCurrentAndNoncurrentAbstract_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyTransactionsAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RelatedPartyTransactionsAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RelatedPartyTransactionsAbstract_lbl" xml:lang="en-US"> Related Party Transactions [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RelatedPartyTransactionsAbstract" xlink:to="us-gaap_RelatedPartyTransactionsAbstract_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_StockholdersEquityNoteAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockholdersEquityNoteAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockholdersEquityNoteAbstract_lbl" xml:lang="en-US"> Stockholders' Equity [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquityNoteAbstract" xlink:to="us-gaap_StockholdersEquityNoteAbstract_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ClassOfWarrantOrRightAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfWarrantOrRightAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ClassOfWarrantOrRightAxis_lbl" xml:lang="en-US"> Class of Warrant or Right [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassOfWarrantOrRightAxis" xlink:to="us-gaap_ClassOfWarrantOrRightAxis_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber_lbl" xml:lang="en-US"> Number of Shares, Ending Outstanding </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber_lbl"/>
<loc xlink:type="locator" xlink:label="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingWeightedAverageExercisePrice" xlink:href="auid-20231231.xsd#auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingWeightedAverageExercisePrice"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingWeightedAverageExercisePrice_lbl" xml:lang="en-US"> Weighted Average Exercise Price, Ending Outstanding </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingWeightedAverageExercisePrice" xlink:to="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingWeightedAverageExercisePrice_lbl"/>
<loc xlink:type="locator" xlink:label="srt_RangeAxis" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_RangeAxis_lbl" xml:lang="en-US"> Statistical Measurement [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_RangeAxis" xlink:to="srt_RangeAxis_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptionsAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptionsAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptionsAbstract_lbl" xml:lang="en-US"> Schedule of Activity Related to Stock Options [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptionsAbstract" xlink:to="us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptionsAbstract_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_lbl" xml:lang="en-US"> Number of Shares, Ending Outstanding </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_lbl" xml:lang="en-US"> Weighted Average Exercise Price, Ending Outstanding </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_lbl" xml:lang="en-US"> Aggregate Intrinsic Value, Ending Outstanding </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis_lbl" xml:lang="en-US"> Exercise Price Range [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis" xlink:to="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeAxis_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_IncomeTaxDisclosureAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeTaxDisclosureAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeTaxDisclosureAbstract_lbl" xml:lang="en-US"> Income Taxes [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeTaxDisclosureAbstract" xlink:to="us-gaap_IncomeTaxDisclosureAbstract_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestmentsAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestmentsAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestmentsAbstract_lbl" xml:lang="en-US"> Schedule of Company’s Loss Before Income Taxes from Us and Foreign Sources [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestmentsAbstract" xlink:to="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestmentsAbstract_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_IncomeTaxReconciliationTaxContingenciesAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeTaxReconciliationTaxContingenciesAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeTaxReconciliationTaxContingenciesAbstract_lbl" xml:lang="en-US"> Schedule of the U.S.Federal Statutory Tax Rate and the Company’s Effective Tax Rate [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeTaxReconciliationTaxContingenciesAbstract" xlink:to="us-gaap_IncomeTaxReconciliationTaxContingenciesAbstract_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ComponentsOfDeferredTaxAssetsAndLiabilitiesAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ComponentsOfDeferredTaxAssetsAndLiabilitiesAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ComponentsOfDeferredTaxAssetsAndLiabilitiesAbstract_lbl" xml:lang="en-US"> Schedule of Deferred Tax Assets and Liabilities [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ComponentsOfDeferredTaxAssetsAndLiabilitiesAbstract" xlink:to="us-gaap_ComponentsOfDeferredTaxAssetsAndLiabilitiesAbstract_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DeferredTaxAssetsLiabilitiesNet" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsLiabilitiesNet"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_DeferredTaxAssetsLiabilitiesNet_lbl" xml:lang="en-US"> Deferred tax assets, net </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxAssetsLiabilitiesNet" xlink:to="us-gaap_DeferredTaxAssetsLiabilitiesNet_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrentAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrentAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrentAbstract_lbl" xml:lang="en-US"> Discontinued Operations and Assets Held for Sale [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrentAbstract" xlink:to="us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrentAbstract_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrentAbstract_lbl0" xml:lang="en-US"> Carrying value of net assets sold: </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrentAbstract" xlink:to="us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrentAbstract_lbl0"/>
<loc xlink:type="locator" xlink:label="us-gaap_StatementOperatingActivitiesSegmentAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementOperatingActivitiesSegmentAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StatementOperatingActivitiesSegmentAxis_lbl" xml:lang="en-US"> Operating Activities [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementOperatingActivitiesSegmentAxis" xlink:to="us-gaap_StatementOperatingActivitiesSegmentAxis_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DisposalGroupClassificationAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisposalGroupClassificationAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DisposalGroupClassificationAxis_lbl" xml:lang="en-US"> Disposal Group Classification [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DisposalGroupClassificationAxis" xlink:to="us-gaap_DisposalGroupClassificationAxis_lbl"/>
<loc xlink:type="locator" xlink:label="auid_ScheduleOfCashFlowActivityRelatedToDiscontinuedOperationsAbstract" xlink:href="auid-20231231.xsd#auid_ScheduleOfCashFlowActivityRelatedToDiscontinuedOperationsAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_ScheduleOfCashFlowActivityRelatedToDiscontinuedOperationsAbstract_lbl" xml:lang="en-US"> Schedule of Cash Flow Activity Related to Discontinued Operations [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_ScheduleOfCashFlowActivityRelatedToDiscontinuedOperationsAbstract" xlink:to="auid_ScheduleOfCashFlowActivityRelatedToDiscontinuedOperationsAbstract_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureAbstract_lbl" xml:lang="en-US"> Commitments and Contingencies [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:to="us-gaap_CommitmentsAndContingenciesDisclosureAbstract_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_SegmentReportingInformationProfitLossAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SegmentReportingInformationProfitLossAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SegmentReportingInformationProfitLossAbstract_lbl" xml:lang="en-US"> Segment Information [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SegmentReportingInformationProfitLossAbstract" xlink:to="us-gaap_SegmentReportingInformationProfitLossAbstract_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_AssetsAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetsAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AssetsAbstract_lbl" xml:lang="en-US"> ASSETS </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsAbstract" xlink:to="us-gaap_AssetsAbstract_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_AssetsCurrentAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetsCurrentAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AssetsCurrentAbstract_lbl" xml:lang="en-US"> Current Assets: </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsCurrentAbstract" xlink:to="us-gaap_AssetsCurrentAbstract_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_Cash" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Cash"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_Cash_lbl" xml:lang="en-US"> Cash </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Cash" xlink:to="us-gaap_Cash_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_AccountsReceivableNetCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccountsReceivableNetCurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AccountsReceivableNetCurrent_lbl" xml:lang="en-US"> Accounts receivable, net </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountsReceivableNetCurrent" xlink:to="us-gaap_AccountsReceivableNetCurrent_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_AssetsHeldInTrustCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetsHeldInTrustCurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AssetsHeldInTrustCurrent_lbl" xml:lang="en-US"> Current assets held for sale </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsHeldInTrustCurrent" xlink:to="us-gaap_AssetsHeldInTrustCurrent_lbl"/>
<loc xlink:type="locator" xlink:label="auid_UnlabeledAbstract" xlink:href="auid-20231231.xsd#auid_UnlabeledAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_UnlabeledAbstract_lbl" xml:lang="en-US"> </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract" xlink:to="auid_UnlabeledAbstract_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_OtherAssetsNoncurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherAssetsNoncurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OtherAssetsNoncurrent_lbl" xml:lang="en-US"> Other Assets </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherAssetsNoncurrent" xlink:to="us-gaap_OtherAssetsNoncurrent_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_OtherAssetsNoncurrent_lbl0" xml:lang="en-US"> Total other assets </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherAssetsNoncurrent" xlink:to="us-gaap_OtherAssetsNoncurrent_lbl0"/>
<loc xlink:type="locator" xlink:label="us-gaap_IntangibleAssetsNetExcludingGoodwill" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_IntangibleAssetsNetExcludingGoodwill_lbl" xml:lang="en-US"> Intangible Assets, net </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IntangibleAssetsNetExcludingGoodwill" xlink:to="us-gaap_IntangibleAssetsNetExcludingGoodwill_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_Goodwill" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Goodwill"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_Goodwill_lbl" xml:lang="en-US"> Goodwill </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Goodwill" xlink:to="us-gaap_Goodwill_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_AssetsHeldInTrustNoncurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetsHeldInTrustNoncurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AssetsHeldInTrustNoncurrent_lbl" xml:lang="en-US"> Non-current assets held for sale </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsHeldInTrustNoncurrent" xlink:to="us-gaap_AssetsHeldInTrustNoncurrent_lbl"/>
<loc xlink:type="locator" xlink:label="auid_UnlabeledAbstract0" xlink:href="auid-20231231.xsd#auid_UnlabeledAbstract0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_UnlabeledAbstract0_lbl" xml:lang="en-US"> </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract0" xlink:to="auid_UnlabeledAbstract0_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl" xml:lang="en-US"> LIABILITIES AND STOCKHOLDERS’ EQUITY </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:to="us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_LiabilitiesCurrentAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LiabilitiesCurrentAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LiabilitiesCurrentAbstract_lbl" xml:lang="en-US"> Current Liabilities: </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesCurrentAbstract" xlink:to="us-gaap_LiabilitiesCurrentAbstract_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DeferredRevenueCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredRevenueCurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DeferredRevenueCurrent_lbl" xml:lang="en-US"> Deferred revenue </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredRevenueCurrent" xlink:to="us-gaap_DeferredRevenueCurrent_lbl"/>
<loc xlink:type="locator" xlink:label="auid_DeferredContractLiability" xlink:href="auid-20231231.xsd#auid_DeferredContractLiability"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_DeferredContractLiability_lbl" xml:lang="en-US"> Deferred contract liability </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_DeferredContractLiability" xlink:to="auid_DeferredContractLiability_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_OtherLiabilitiesCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherLiabilitiesCurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OtherLiabilitiesCurrent_lbl" xml:lang="en-US"> Current liabilities held for sale </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherLiabilitiesCurrent" xlink:to="us-gaap_OtherLiabilitiesCurrent_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_LiabilitiesNoncurrentAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LiabilitiesNoncurrentAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LiabilitiesNoncurrentAbstract_lbl" xml:lang="en-US"> Non-current Liabilities: </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesNoncurrentAbstract" xlink:to="us-gaap_LiabilitiesNoncurrentAbstract_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ConvertibleDebtNoncurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConvertibleDebtNoncurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ConvertibleDebtNoncurrent_lbl" xml:lang="en-US"> Convertible debt, net </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConvertibleDebtNoncurrent" xlink:to="us-gaap_ConvertibleDebtNoncurrent_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_ConvertibleDebtNoncurrent_lbl0" xml:lang="en-US"> Convertible debt, total </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConvertibleDebtNoncurrent" xlink:to="us-gaap_ConvertibleDebtNoncurrent_lbl0"/>
<loc xlink:type="locator" xlink:label="auid_DeferredSeverance" xlink:href="auid-20231231.xsd#auid_DeferredSeverance"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_DeferredSeverance_lbl" xml:lang="en-US"> Deferred Severance </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_DeferredSeverance" xlink:to="auid_DeferredSeverance_lbl"/>
<loc xlink:type="locator" xlink:label="auid_UnlabeledAbstract1" xlink:href="auid-20231231.xsd#auid_UnlabeledAbstract1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_UnlabeledAbstract1_lbl" xml:lang="en-US"> </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract1" xlink:to="auid_UnlabeledAbstract1_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_CommitmentsAndContingencies" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommitmentsAndContingencies"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CommitmentsAndContingencies_lbl" xml:lang="en-US"> Commitments and Contingencies (Note 12) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommitmentsAndContingencies" xlink:to="us-gaap_CommitmentsAndContingencies_lbl"/>
<loc xlink:type="locator" xlink:label="auid_UnlabeledAbstract2" xlink:href="auid-20231231.xsd#auid_UnlabeledAbstract2"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_UnlabeledAbstract2_lbl" xml:lang="en-US"> </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract2" xlink:to="auid_UnlabeledAbstract2_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_StockholdersEquityAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockholdersEquityAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StockholdersEquityAbstract_lbl" xml:lang="en-US"> Stockholders’ Equity: </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquityAbstract" xlink:to="us-gaap_StockholdersEquityAbstract_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_CommonStockValue" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockValue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CommonStockValue_lbl" xml:lang="en-US"> Common stock, $0.0001 par value, 250,000,000 shares authorized; 9,450,220 and 3,179,789 shares issued and outstanding as of December 31, 2023 and 2022, respectively </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockValue" xlink:to="us-gaap_CommonStockValue_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_CommonStockValue_lbl0" xml:lang="en-US"> Common stock offering </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockValue" xlink:to="us-gaap_CommonStockValue_lbl0"/>
<loc xlink:type="locator" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockParOrStatedValuePerShare"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare_lbl" xml:lang="en-US"> Common stock, par value (in Dollars per share) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockParOrStatedValuePerShare" xlink:to="us-gaap_CommonStockParOrStatedValuePerShare_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare_lbl0" xml:lang="en-US"> Par value (in Dollars per share) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockParOrStatedValuePerShare" xlink:to="us-gaap_CommonStockParOrStatedValuePerShare_lbl0"/>
<loc xlink:type="locator" xlink:label="us-gaap_CommonStockSharesAuthorized" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockSharesAuthorized"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CommonStockSharesAuthorized_lbl" xml:lang="en-US"> Common stock, shares authorized </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockSharesAuthorized" xlink:to="us-gaap_CommonStockSharesAuthorized_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_CommonStockSharesIssued" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockSharesIssued"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CommonStockSharesIssued_lbl" xml:lang="en-US"> Common stock, shares issued </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockSharesIssued" xlink:to="us-gaap_CommonStockSharesIssued_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_CommonStockSharesIssued_lbl0" xml:lang="en-US"> Common stock shares (in Shares) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockSharesIssued" xlink:to="us-gaap_CommonStockSharesIssued_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:label="us-gaap_CommonStockSharesIssued_lbl1" xml:lang="en-US"> Shares of common stock (in Shares) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockSharesIssued" xlink:to="us-gaap_CommonStockSharesIssued_lbl1"/>
<loc xlink:type="locator" xlink:label="us-gaap_AdditionalPaidInCapitalCommonStock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AdditionalPaidInCapitalCommonStock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AdditionalPaidInCapitalCommonStock_lbl" xml:lang="en-US"> Additional paid in capital </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdditionalPaidInCapitalCommonStock" xlink:to="us-gaap_AdditionalPaidInCapitalCommonStock_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit_lbl" xml:lang="en-US"> Accumulated deficit </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RetainedEarningsAccumulatedDeficit" xlink:to="us-gaap_RetainedEarningsAccumulatedDeficit_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_lbl" xml:lang="en-US"> Accumulated comprehensive income </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:to="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_RevenuesAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenuesAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_RevenuesAbstract_lbl" xml:lang="en-US"> Revenues: </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RevenuesAbstract" xlink:to="us-gaap_RevenuesAbstract_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_Revenues" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Revenues"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_Revenues_lbl" xml:lang="en-US"> Total revenues, net </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Revenues" xlink:to="us-gaap_Revenues_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_Revenues_lbl0" xml:lang="en-US"> Earned revenue </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Revenues" xlink:to="us-gaap_Revenues_lbl0"/>
<loc xlink:type="locator" xlink:label="auid_UnlabeledAbstract3" xlink:href="auid-20231231.xsd#auid_UnlabeledAbstract3"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_UnlabeledAbstract3_lbl" xml:lang="en-US"> </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract3" xlink:to="auid_UnlabeledAbstract3_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_OperatingExpensesAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingExpensesAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OperatingExpensesAbstract_lbl" xml:lang="en-US"> Operating Expenses: </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingExpensesAbstract" xlink:to="us-gaap_OperatingExpensesAbstract_lbl"/>
<loc xlink:type="locator" xlink:label="auid_UnlabeledAbstract4" xlink:href="auid-20231231.xsd#auid_UnlabeledAbstract4"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_UnlabeledAbstract4_lbl" xml:lang="en-US"> </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract4" xlink:to="auid_UnlabeledAbstract4_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_GeneralAndAdministrativeExpense" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GeneralAndAdministrativeExpense"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_GeneralAndAdministrativeExpense_lbl" xml:lang="en-US"> General and administrative </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GeneralAndAdministrativeExpense" xlink:to="us-gaap_GeneralAndAdministrativeExpense_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ResearchAndDevelopmentExpense" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ResearchAndDevelopmentExpense"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ResearchAndDevelopmentExpense_lbl" xml:lang="en-US"> Research and development </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ResearchAndDevelopmentExpense" xlink:to="us-gaap_ResearchAndDevelopmentExpense_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DepreciationAndAmortization" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DepreciationAndAmortization"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DepreciationAndAmortization_lbl" xml:lang="en-US"> Depreciation and amortization </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DepreciationAndAmortization" xlink:to="us-gaap_DepreciationAndAmortization_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_OtherAssetImpairmentCharges" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherAssetImpairmentCharges"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OtherAssetImpairmentCharges_lbl" xml:lang="en-US"> Impairment losses </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherAssetImpairmentCharges" xlink:to="us-gaap_OtherAssetImpairmentCharges_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_OtherAssetImpairmentCharges_lbl0" xml:lang="en-US"> Impairment expense </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherAssetImpairmentCharges" xlink:to="us-gaap_OtherAssetImpairmentCharges_lbl0"/>
<loc xlink:type="locator" xlink:label="auid_UnlabeledAbstract5" xlink:href="auid-20231231.xsd#auid_UnlabeledAbstract5"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_UnlabeledAbstract5_lbl" xml:lang="en-US"> </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract5" xlink:to="auid_UnlabeledAbstract5_lbl"/>
<loc xlink:type="locator" xlink:label="auid_UnlabeledAbstract6" xlink:href="auid-20231231.xsd#auid_UnlabeledAbstract6"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_UnlabeledAbstract6_lbl" xml:lang="en-US"> </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract6" xlink:to="auid_UnlabeledAbstract6_lbl"/>
<loc xlink:type="locator" xlink:label="auid_OtherExpenseIncomeAbstract" xlink:href="auid-20231231.xsd#auid_OtherExpenseIncomeAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_OtherExpenseIncomeAbstract_lbl" xml:lang="en-US"> Other (Expense) Income </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_OtherExpenseIncomeAbstract" xlink:to="auid_OtherExpenseIncomeAbstract_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_OtherIncome" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherIncome"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OtherIncome_lbl" xml:lang="en-US"> Other income (expense), net </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherIncome" xlink:to="us-gaap_OtherIncome_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_GainsLossesOnExtinguishmentOfDebt" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_GainsLossesOnExtinguishmentOfDebt_lbl" xml:lang="en-US"> Loss on extinguishment of debt </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GainsLossesOnExtinguishmentOfDebt" xlink:to="us-gaap_GainsLossesOnExtinguishmentOfDebt_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_GainsLossesOnExtinguishmentOfDebt_lbl0" xml:lang="en-US"> Loss on debt extinguishment </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GainsLossesOnExtinguishmentOfDebt" xlink:to="us-gaap_GainsLossesOnExtinguishmentOfDebt_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_GainsLossesOnExtinguishmentOfDebt_lbl1" xml:lang="en-US"> Loss on debt extinguishment </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GainsLossesOnExtinguishmentOfDebt" xlink:to="us-gaap_GainsLossesOnExtinguishmentOfDebt_lbl1"/>
<loc xlink:type="locator" xlink:label="auid_UnlabeledAbstract7" xlink:href="auid-20231231.xsd#auid_UnlabeledAbstract7"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_UnlabeledAbstract7_lbl" xml:lang="en-US"> </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract7" xlink:to="auid_UnlabeledAbstract7_lbl"/>
<loc xlink:type="locator" xlink:label="auid_UnlabeledAbstract8" xlink:href="auid-20231231.xsd#auid_UnlabeledAbstract8"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_UnlabeledAbstract8_lbl" xml:lang="en-US"> </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract8" xlink:to="auid_UnlabeledAbstract8_lbl"/>
<loc xlink:type="locator" xlink:label="auid_UnlabeledAbstract9" xlink:href="auid-20231231.xsd#auid_UnlabeledAbstract9"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_UnlabeledAbstract9_lbl" xml:lang="en-US"> </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract9" xlink:to="auid_UnlabeledAbstract9_lbl"/>
<loc xlink:type="locator" xlink:label="auid_UnlabeledAbstract10" xlink:href="auid-20231231.xsd#auid_UnlabeledAbstract10"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_UnlabeledAbstract10_lbl" xml:lang="en-US"> </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract10" xlink:to="auid_UnlabeledAbstract10_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax_lbl" xml:lang="en-US"> Gain (loss) from discontinued operations </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax" xlink:to="us-gaap_DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax_lbl0" xml:lang="en-US"> Net Income (Loss) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax" xlink:to="us-gaap_DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax_lbl1" xml:lang="en-US"> Income (Loss) from discontinued operations </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax" xlink:to="us-gaap_DiscontinuedOperationGainLossFromDisposalOfDiscontinuedOperationBeforeIncomeTax_lbl1"/>
<loc xlink:type="locator" xlink:label="auid_UnlabeledAbstract11" xlink:href="auid-20231231.xsd#auid_UnlabeledAbstract11"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_UnlabeledAbstract11_lbl" xml:lang="en-US"> </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract11" xlink:to="auid_UnlabeledAbstract11_lbl"/>
<loc xlink:type="locator" xlink:label="auid_UnlabeledAbstract12" xlink:href="auid-20231231.xsd#auid_UnlabeledAbstract12"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_UnlabeledAbstract12_lbl" xml:lang="en-US"> </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract12" xlink:to="auid_UnlabeledAbstract12_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_EarningsPerShareAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EarningsPerShareAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_EarningsPerShareAbstract_lbl" xml:lang="en-US"> Net Loss Per Share - Basic and Diluted </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EarningsPerShareAbstract" xlink:to="us-gaap_EarningsPerShareAbstract_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_IncomeLossFromContinuingOperationsPerBasicShare" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeLossFromContinuingOperationsPerBasicShare"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_IncomeLossFromContinuingOperationsPerBasicShare_lbl" xml:lang="en-US"> Continuing operations, Basic (in Dollars per share) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeLossFromContinuingOperationsPerBasicShare" xlink:to="us-gaap_IncomeLossFromContinuingOperationsPerBasicShare_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare_lbl" xml:lang="en-US"> Continuing operations, Diluted </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare" xlink:to="us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare_lbl" xml:lang="en-US"> Discontinued operations, Basic (in Dollars per share) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare" xlink:to="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare_lbl" xml:lang="en-US"> Discontinued operations, Diluted </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare" xlink:to="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare_lbl"/>
<loc xlink:type="locator" xlink:label="auid_UnlabeledAbstract13" xlink:href="auid-20231231.xsd#auid_UnlabeledAbstract13"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_UnlabeledAbstract13_lbl" xml:lang="en-US"> </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract13" xlink:to="auid_UnlabeledAbstract13_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl" xml:lang="en-US"> Weighted Average Shares Outstanding - Basic (in Shares) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:to="us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl" xml:lang="en-US"> Weighted Average Shares Outstanding – Diluted (in Shares) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:to="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_lbl" xml:lang="en-US"> Foreign currency translation loss </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent" xlink:to="us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition_lbl" xml:lang="en-US"> Stock-based compensation </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition" xlink:to="us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodValueNewIssues"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues_lbl" xml:lang="en-US"> Sale of common stock for cash, net of offering costs </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:to="us-gaap_StockIssuedDuringPeriodValueNewIssues_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues_lbl" xml:lang="en-US"> Sale of common stock for cash, net of offering costs (in Shares) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:to="us-gaap_StockIssuedDuringPeriodSharesNewIssues_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues_lbl0" xml:lang="en-US"> Shares of common stock </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:to="us-gaap_StockIssuedDuringPeriodSharesNewIssues_lbl0"/>
<loc xlink:type="locator" xlink:label="auid_StockIssuedDuringPeriodValueCommonStockIssuedWithConvertibleDebt" xlink:href="auid-20231231.xsd#auid_StockIssuedDuringPeriodValueCommonStockIssuedWithConvertibleDebt"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_StockIssuedDuringPeriodValueCommonStockIssuedWithConvertibleDebt_lbl" xml:lang="en-US"> Common stock issued with convertible debt </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_StockIssuedDuringPeriodValueCommonStockIssuedWithConvertibleDebt" xlink:to="auid_StockIssuedDuringPeriodValueCommonStockIssuedWithConvertibleDebt_lbl"/>
<loc xlink:type="locator" xlink:label="auid_StockIssuedDuringPeriodSharesCommonStockIssuedWithConvertibleDebtin" xlink:href="auid-20231231.xsd#auid_StockIssuedDuringPeriodSharesCommonStockIssuedWithConvertibleDebtin"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_StockIssuedDuringPeriodSharesCommonStockIssuedWithConvertibleDebtin_lbl" xml:lang="en-US"> Common stock issued with convertible debt (in Shares) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_StockIssuedDuringPeriodSharesCommonStockIssuedWithConvertibleDebtin" xlink:to="auid_StockIssuedDuringPeriodSharesCommonStockIssuedWithConvertibleDebtin_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_StockIssuedDuringPeriodValueAcquisitions" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodValueAcquisitions"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StockIssuedDuringPeriodValueAcquisitions_lbl" xml:lang="en-US"> Common stock issued for working capital facility </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodValueAcquisitions" xlink:to="us-gaap_StockIssuedDuringPeriodValueAcquisitions_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_StockIssuedDuringPeriodSharesAcquisitions" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodSharesAcquisitions"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StockIssuedDuringPeriodSharesAcquisitions_lbl" xml:lang="en-US"> Common stock issued for working capital facility (in Shares) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesAcquisitions" xlink:to="us-gaap_StockIssuedDuringPeriodSharesAcquisitions_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_StockIssuedDuringPeriodValueOther" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodValueOther"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StockIssuedDuringPeriodValueOther_lbl" xml:lang="en-US"> Shares issued in lieu of interest </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodValueOther" xlink:to="us-gaap_StockIssuedDuringPeriodValueOther_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_StockIssuedDuringPeriodSharesOther" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodSharesOther"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StockIssuedDuringPeriodSharesOther_lbl" xml:lang="en-US"> Shares issued in lieu of interest (in Shares) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesOther" xlink:to="us-gaap_StockIssuedDuringPeriodSharesOther_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalConvertibleDebtWithConversionFeature" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalConvertibleDebtWithConversionFeature"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalConvertibleDebtWithConversionFeature_lbl" xml:lang="en-US"> Warrants for services with the issuance of convertible debt </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdjustmentsToAdditionalPaidInCapitalConvertibleDebtWithConversionFeature" xlink:to="us-gaap_AdjustmentsToAdditionalPaidInCapitalConvertibleDebtWithConversionFeature_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised_lbl" xml:lang="en-US"> Cashless stock option exercise </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised" xlink:to="us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_lbl" xml:lang="en-US"> Cashless stock option exercise (in Shares) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:to="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_lbl0" xml:lang="en-US"> Number of Shares, Exercised </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:to="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_lbl0"/>
<loc xlink:type="locator" xlink:label="auid_StockIssuedDuringPeriodValueCashlessWarrantExercise" xlink:href="auid-20231231.xsd#auid_StockIssuedDuringPeriodValueCashlessWarrantExercise"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_StockIssuedDuringPeriodValueCashlessWarrantExercise_lbl" xml:lang="en-US"> Cashless warrant exercise </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_StockIssuedDuringPeriodValueCashlessWarrantExercise" xlink:to="auid_StockIssuedDuringPeriodValueCashlessWarrantExercise_lbl"/>
<loc xlink:type="locator" xlink:label="auid_StockIssuedDuringPeriodSharesCashlessWarrantExercise" xlink:href="auid-20231231.xsd#auid_StockIssuedDuringPeriodSharesCashlessWarrantExercise"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_StockIssuedDuringPeriodSharesCashlessWarrantExercise_lbl" xml:lang="en-US"> Cashless warrant exercise (in Shares) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_StockIssuedDuringPeriodSharesCashlessWarrantExercise" xlink:to="auid_StockIssuedDuringPeriodSharesCashlessWarrantExercise_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_StockAndWarrantsIssuedDuringPeriodValuePreferredStockAndWarrants" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockAndWarrantsIssuedDuringPeriodValuePreferredStockAndWarrants"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StockAndWarrantsIssuedDuringPeriodValuePreferredStockAndWarrants_lbl" xml:lang="en-US"> Warrant exercise for cash </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockAndWarrantsIssuedDuringPeriodValuePreferredStockAndWarrants" xlink:to="us-gaap_StockAndWarrantsIssuedDuringPeriodValuePreferredStockAndWarrants_lbl"/>
<loc xlink:type="locator" xlink:label="auid_StockIssuedDuringPeriodWarrantExerciseForCashinShares" xlink:href="auid-20231231.xsd#auid_StockIssuedDuringPeriodWarrantExerciseForCashinShares"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_StockIssuedDuringPeriodWarrantExerciseForCashinShares_lbl" xml:lang="en-US"> Warrant exercise for cash (in Shares) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_StockIssuedDuringPeriodWarrantExerciseForCashinShares" xlink:to="auid_StockIssuedDuringPeriodWarrantExerciseForCashinShares_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_StockIssuedDuringPeriodValueConversionOfUnits" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodValueConversionOfUnits"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StockIssuedDuringPeriodValueConversionOfUnits_lbl" xml:lang="en-US"> Convertible note converted to common stock </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodValueConversionOfUnits" xlink:to="us-gaap_StockIssuedDuringPeriodValueConversionOfUnits_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits_lbl" xml:lang="en-US"> Convertible note converted to common stock (in Shares) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits" xlink:to="us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits_lbl0" xml:lang="en-US"> Shares of common stock exchanged (in Shares) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits" xlink:to="us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:label="us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits_lbl1" xml:lang="en-US"> Shares of common stock </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits" xlink:to="us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits_lbl1"/>
<loc xlink:type="locator" xlink:label="us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_lbl" xml:lang="en-US"> Foreign currency translation </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax" xlink:to="us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities_lbl" xml:lang="en-US"> Conversion of convertible debt into common stock </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities" xlink:to="us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities_lbl" xml:lang="en-US"> Conversion of convertible debt into common stock (in Shares) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:to="us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities_lbl0" xml:lang="en-US"> Shares of common stock in exchange for Convertible Notes </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:to="us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities_lbl0"/>
<loc xlink:type="locator" xlink:label="auid_StockIssuedDuringPeriodValueConversionOfCreditFacilityBorrowingsIntoCommonStock" xlink:href="auid-20231231.xsd#auid_StockIssuedDuringPeriodValueConversionOfCreditFacilityBorrowingsIntoCommonStock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_StockIssuedDuringPeriodValueConversionOfCreditFacilityBorrowingsIntoCommonStock_lbl" xml:lang="en-US"> Conversion of credit facility borrowings into common stock </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_StockIssuedDuringPeriodValueConversionOfCreditFacilityBorrowingsIntoCommonStock" xlink:to="auid_StockIssuedDuringPeriodValueConversionOfCreditFacilityBorrowingsIntoCommonStock_lbl"/>
<loc xlink:type="locator" xlink:label="auid_StockIssuedDuringPeriodShareConversionOfCreditFacilityBorrowingsIntoCommonStockinShares" xlink:href="auid-20231231.xsd#auid_StockIssuedDuringPeriodShareConversionOfCreditFacilityBorrowingsIntoCommonStockinShares"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_StockIssuedDuringPeriodShareConversionOfCreditFacilityBorrowingsIntoCommonStockinShares_lbl" xml:lang="en-US"> Conversion of credit facility borrowings into common stock (in Shares) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_StockIssuedDuringPeriodShareConversionOfCreditFacilityBorrowingsIntoCommonStockinShares" xlink:to="auid_StockIssuedDuringPeriodShareConversionOfCreditFacilityBorrowingsIntoCommonStockinShares_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued_lbl" xml:lang="en-US"> Warrants for services with securities purchase agreement </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued" xlink:to="us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xml:lang="en-US"> CASH FLOWS FROM OPERATING ACTIVITIES: </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl" xml:lang="en-US"> Adjustments to reconcile net loss with cash flows from operations: </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="us-gaap_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl"/>
<loc xlink:type="locator" xlink:label="auid_ConversionExpense" xlink:href="auid-20231231.xsd#auid_ConversionExpense"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_ConversionExpense_lbl" xml:lang="en-US"> Conversion expense </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_ConversionExpense" xlink:to="auid_ConversionExpense_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="auid_ConversionExpense_lbl0" xml:lang="en-US"> Conversion expense </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_ConversionExpense" xlink:to="auid_ConversionExpense_lbl0"/>
<loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensation" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensation"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ShareBasedCompensation_lbl" xml:lang="en-US"> Stock-based compensation </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensation" xlink:to="us-gaap_ShareBasedCompensation_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_AmortizationOfFinancingCostsAndDiscounts" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AmortizationOfFinancingCostsAndDiscounts"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AmortizationOfFinancingCostsAndDiscounts_lbl" xml:lang="en-US"> Amortization of debt discounts and issuance costs </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AmortizationOfFinancingCostsAndDiscounts" xlink:to="us-gaap_AmortizationOfFinancingCostsAndDiscounts_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_AdjustmentOfWarrantsGrantedForServices" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AdjustmentOfWarrantsGrantedForServices"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AdjustmentOfWarrantsGrantedForServices_lbl" xml:lang="en-US"> Warrants for services </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdjustmentOfWarrantsGrantedForServices" xlink:to="us-gaap_AdjustmentOfWarrantsGrantedForServices_lbl"/>
<loc xlink:type="locator" xlink:label="auid_SharesIssuedInLieuOfInterest" xlink:href="auid-20231231.xsd#auid_SharesIssuedInLieuOfInterest"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_SharesIssuedInLieuOfInterest_lbl" xml:lang="en-US"> Shares issued in lieu of interest </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_SharesIssuedInLieuOfInterest" xlink:to="auid_SharesIssuedInLieuOfInterest_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DepreciationDepletionAndAmortization" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DepreciationDepletionAndAmortization"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DepreciationDepletionAndAmortization_lbl" xml:lang="en-US"> Depreciation and amortization expense </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DepreciationDepletionAndAmortization" xlink:to="us-gaap_DepreciationDepletionAndAmortization_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ProvisionForDoubtfulAccounts" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProvisionForDoubtfulAccounts"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ProvisionForDoubtfulAccounts_lbl" xml:lang="en-US"> Provision for doubtful collection of other receivable </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProvisionForDoubtfulAccounts" xlink:to="us-gaap_ProvisionForDoubtfulAccounts_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax_lbl" xml:lang="en-US"> (Gain) loss from sale of discontinued operation </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax" xlink:to="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax_lbl"/>
<loc xlink:type="locator" xlink:label="auid_ChangesInOperatingAssetsAndLiabilitiesAbstract" xlink:href="auid-20231231.xsd#auid_ChangesInOperatingAssetsAndLiabilitiesAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_ChangesInOperatingAssetsAndLiabilitiesAbstract_lbl" xml:lang="en-US"> Changes in operating assets and liabilities: </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_ChangesInOperatingAssetsAndLiabilitiesAbstract" xlink:to="auid_ChangesInOperatingAssetsAndLiabilitiesAbstract_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_IncreaseDecreaseInContractWithCustomerLiability" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInContractWithCustomerLiability"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_IncreaseDecreaseInContractWithCustomerLiability_lbl" xml:lang="en-US"> Deferred contract cost </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInContractWithCustomerLiability" xlink:to="us-gaap_IncreaseDecreaseInContractWithCustomerLiability_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities_lbl" xml:lang="en-US"> Accounts payable and accrued expenses </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities" xlink:to="us-gaap_IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_IncreaseDecreaseInDeferredRevenue" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInDeferredRevenue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_IncreaseDecreaseInDeferredRevenue_lbl" xml:lang="en-US"> Deferred revenue </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInDeferredRevenue" xlink:to="us-gaap_IncreaseDecreaseInDeferredRevenue_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_IncreaseDecreaseInOtherAccruedLiabilities" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInOtherAccruedLiabilities"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_IncreaseDecreaseInOtherAccruedLiabilities_lbl" xml:lang="en-US"> Other liabilities </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInOtherAccruedLiabilities" xlink:to="us-gaap_IncreaseDecreaseInOtherAccruedLiabilities_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations_lbl" xml:lang="en-US"> Adjustments relating to discontinued operations </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations" xlink:to="us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations_lbl"/>
<loc xlink:type="locator" xlink:label="auid_UnlabeledAbstract14" xlink:href="auid-20231231.xsd#auid_UnlabeledAbstract14"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_UnlabeledAbstract14_lbl" xml:lang="en-US"> </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract14" xlink:to="auid_UnlabeledAbstract14_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_lbl" xml:lang="en-US"> CASH FLOWS FROM INVESTING ACTIVITIES: </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_lbl"/>
<loc xlink:type="locator" xlink:label="auid_ProceedsFromSaleOfDiscontinuedOperations" xlink:href="auid-20231231.xsd#auid_ProceedsFromSaleOfDiscontinuedOperations"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_ProceedsFromSaleOfDiscontinuedOperations_lbl" xml:lang="en-US"> Proceeds from sale of discontinued operations, net of selling costs </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_ProceedsFromSaleOfDiscontinuedOperations" xlink:to="auid_ProceedsFromSaleOfDiscontinuedOperations_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DiscontinuedOperationAmountOfContinuingCashFlowsAfterDisposal" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DiscontinuedOperationAmountOfContinuingCashFlowsAfterDisposal"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DiscontinuedOperationAmountOfContinuingCashFlowsAfterDisposal_lbl" xml:lang="en-US"> Cash disposed of from the sale of a discontinued operation </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DiscontinuedOperationAmountOfContinuingCashFlowsAfterDisposal" xlink:to="us-gaap_DiscontinuedOperationAmountOfContinuingCashFlowsAfterDisposal_lbl"/>
<loc xlink:type="locator" xlink:label="auid_UnlabeledAbstract15" xlink:href="auid-20231231.xsd#auid_UnlabeledAbstract15"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_UnlabeledAbstract15_lbl" xml:lang="en-US"> </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract15" xlink:to="auid_UnlabeledAbstract15_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl" xml:lang="en-US"> CASH FLOWS FROM FINANCING ACTIVITIES: </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromIssuanceOfCommonStock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ProceedsFromIssuanceOfCommonStock_lbl" xml:lang="en-US"> Proceeds from sale of common stock, net of offering costs </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:to="us-gaap_ProceedsFromIssuanceOfCommonStock_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_ProceedsFromIssuanceOfCommonStock_lbl0" xml:lang="en-US"> Common stock cash gross proceeds (in Dollars) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:to="us-gaap_ProceedsFromIssuanceOfCommonStock_lbl0"/>
<loc xlink:type="locator" xlink:label="us-gaap_ProceedsFromDebtNetOfIssuanceCosts" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromDebtNetOfIssuanceCosts"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ProceedsFromDebtNetOfIssuanceCosts_lbl" xml:lang="en-US"> Credit facility drawdown, net of issuance costs </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromDebtNetOfIssuanceCosts" xlink:to="us-gaap_ProceedsFromDebtNetOfIssuanceCosts_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ProceedsFromIssuanceOfConvertiblePreferredStock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromIssuanceOfConvertiblePreferredStock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ProceedsFromIssuanceOfConvertiblePreferredStock_lbl" xml:lang="en-US"> Proceeds from issuance of convertible note payable, net of issuance costs </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromIssuanceOfConvertiblePreferredStock" xlink:to="us-gaap_ProceedsFromIssuanceOfConvertiblePreferredStock_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ProceedsFromWarrantExercises" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromWarrantExercises"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ProceedsFromWarrantExercises_lbl" xml:lang="en-US"> Proceeds from exercise of warrants </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromWarrantExercises" xlink:to="us-gaap_ProceedsFromWarrantExercises_lbl"/>
<loc xlink:type="locator" xlink:label="auid_UnlabeledAbstract16" xlink:href="auid-20231231.xsd#auid_UnlabeledAbstract16"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_UnlabeledAbstract16_lbl" xml:lang="en-US"> </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract16" xlink:to="auid_UnlabeledAbstract16_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl" xml:lang="en-US"> Effect of Foreign Currencies </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:to="us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl"/>
<loc xlink:type="locator" xlink:label="auid_UnlabeledAbstract17" xlink:href="auid-20231231.xsd#auid_UnlabeledAbstract17"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_UnlabeledAbstract17_lbl" xml:lang="en-US"> </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract17" xlink:to="auid_UnlabeledAbstract17_lbl"/>
<loc xlink:type="locator" xlink:label="auid_UnlabeledAbstract18" xlink:href="auid-20231231.xsd#auid_UnlabeledAbstract18"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_UnlabeledAbstract18_lbl" xml:lang="en-US"> </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract18" xlink:to="auid_UnlabeledAbstract18_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_SupplementalCashFlowElementsAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SupplementalCashFlowElementsAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_SupplementalCashFlowElementsAbstract_lbl" xml:lang="en-US"> Supplemental Disclosure of Cash Flow Information: </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SupplementalCashFlowElementsAbstract" xlink:to="us-gaap_SupplementalCashFlowElementsAbstract_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_InterestPaidNet" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InterestPaidNet"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_InterestPaidNet_lbl" xml:lang="en-US"> Cash paid for interest </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InterestPaidNet" xlink:to="us-gaap_InterestPaidNet_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_InterestPaidDiscontinuedOperations" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InterestPaidDiscontinuedOperations"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_InterestPaidDiscontinuedOperations_lbl" xml:lang="en-US"> Cash paid for interest - discontinued operations </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InterestPaidDiscontinuedOperations" xlink:to="us-gaap_InterestPaidDiscontinuedOperations_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_IncomeTaxesPaidNet" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeTaxesPaidNet"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_IncomeTaxesPaidNet_lbl" xml:lang="en-US"> Cash paid for income taxes </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeTaxesPaidNet" xlink:to="us-gaap_IncomeTaxesPaidNet_lbl"/>
<loc xlink:type="locator" xlink:label="auid_IncomeTaxesDiscontinuedOperations" xlink:href="auid-20231231.xsd#auid_IncomeTaxesDiscontinuedOperations"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_IncomeTaxesDiscontinuedOperations_lbl" xml:lang="en-US"> Cash paid for income taxes - discontinued operations </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_IncomeTaxesDiscontinuedOperations" xlink:to="auid_IncomeTaxesDiscontinuedOperations_lbl"/>
<loc xlink:type="locator" xlink:label="auid_UnlabeledAbstract19" xlink:href="auid-20231231.xsd#auid_UnlabeledAbstract19"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_UnlabeledAbstract19_lbl" xml:lang="en-US"> </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract19" xlink:to="auid_UnlabeledAbstract19_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_lbl" xml:lang="en-US"> Schedule of Non-cash Investing and Financing Activities: </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract" xlink:to="us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_lbl"/>
<loc xlink:type="locator" xlink:label="auid_ConversionOfConvertibleNotesToCommonStock" xlink:href="auid-20231231.xsd#auid_ConversionOfConvertibleNotesToCommonStock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_ConversionOfConvertibleNotesToCommonStock_lbl" xml:lang="en-US"> Conversion of convertible note payable and accrued interest to common stock </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_ConversionOfConvertibleNotesToCommonStock" xlink:to="auid_ConversionOfConvertibleNotesToCommonStock_lbl"/>
<loc xlink:type="locator" xlink:label="auid_ConversionOfCreditFacilityBorrowingsIntoCommonStock" xlink:href="auid-20231231.xsd#auid_ConversionOfCreditFacilityBorrowingsIntoCommonStock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_ConversionOfCreditFacilityBorrowingsIntoCommonStock_lbl" xml:lang="en-US"> Conversion of credit facility borrowings into common stock </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_ConversionOfCreditFacilityBorrowingsIntoCommonStock" xlink:to="auid_ConversionOfCreditFacilityBorrowingsIntoCommonStock_lbl"/>
<loc xlink:type="locator" xlink:label="auid_CashlessOptionAndWarrantExercises" xlink:href="auid-20231231.xsd#auid_CashlessOptionAndWarrantExercises"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_CashlessOptionAndWarrantExercises_lbl" xml:lang="en-US"> Cashless option and warrant exercises </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_CashlessOptionAndWarrantExercises" xlink:to="auid_CashlessOptionAndWarrantExercises_lbl"/>
<loc xlink:type="locator" xlink:label="auid_SettlementOfAccountsPayableWithIssuanceOfCommonStock" xlink:href="auid-20231231.xsd#auid_SettlementOfAccountsPayableWithIssuanceOfCommonStock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_SettlementOfAccountsPayableWithIssuanceOfCommonStock_lbl" xml:lang="en-US"> Common stock issued with convertible debt </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_SettlementOfAccountsPayableWithIssuanceOfCommonStock" xlink:to="auid_SettlementOfAccountsPayableWithIssuanceOfCommonStock_lbl"/>
<loc xlink:type="locator" xlink:label="auid_CommonStockForWorkingCapitalFacility" xlink:href="auid-20231231.xsd#auid_CommonStockForWorkingCapitalFacility"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_CommonStockForWorkingCapitalFacility_lbl" xml:lang="en-US"> Common stock for working capital facility </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_CommonStockForWorkingCapitalFacility" xlink:to="auid_CommonStockForWorkingCapitalFacility_lbl"/>
<loc xlink:type="locator" xlink:label="auid_WarrantForServicesWithTheIssuanceOfConvertibleDebt" xlink:href="auid-20231231.xsd#auid_WarrantForServicesWithTheIssuanceOfConvertibleDebt"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_WarrantForServicesWithTheIssuanceOfConvertibleDebt_lbl" xml:lang="en-US"> Warrants for services with the issuance of convertible debt </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_WarrantForServicesWithTheIssuanceOfConvertibleDebt" xlink:to="auid_WarrantForServicesWithTheIssuanceOfConvertibleDebt_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_InterestExpense" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InterestExpense"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_InterestExpense_lbl" xml:lang="en-US"> Interest expense, net </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InterestExpense" xlink:to="us-gaap_InterestExpense_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_IncomeTaxExpenseBenefit" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_IncomeTaxExpenseBenefit_lbl" xml:lang="en-US"> Income tax expense </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeTaxExpenseBenefit" xlink:to="us-gaap_IncomeTaxExpenseBenefit_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DiscontinuedOperationTaxEffectOfIncomeLossFromDisposalOfDiscontinuedOperation" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DiscontinuedOperationTaxEffectOfIncomeLossFromDisposalOfDiscontinuedOperation"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_DiscontinuedOperationTaxEffectOfIncomeLossFromDisposalOfDiscontinuedOperation_lbl" xml:lang="en-US"> Gain (loss) on sale of discontinued operations </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DiscontinuedOperationTaxEffectOfIncomeLossFromDisposalOfDiscontinuedOperation" xlink:to="us-gaap_DiscontinuedOperationTaxEffectOfIncomeLossFromDisposalOfDiscontinuedOperation_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DiscontinuedOperationTaxEffectOfIncomeLossFromDisposalOfDiscontinuedOperation_lbl0" xml:lang="en-US"> Gain (Loss) from sale of discontinued operations </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DiscontinuedOperationTaxEffectOfIncomeLossFromDisposalOfDiscontinuedOperation" xlink:to="us-gaap_DiscontinuedOperationTaxEffectOfIncomeLossFromDisposalOfDiscontinuedOperation_lbl0"/>
<loc xlink:type="locator" xlink:label="us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_IncreaseDecreaseInAccountsReceivable_lbl" xml:lang="en-US"> Accounts receivable </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:to="us-gaap_IncreaseDecreaseInAccountsReceivable_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_IncreaseDecreaseInAccountsReceivable_lbl0" xml:lang="en-US"> Received income </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:to="us-gaap_IncreaseDecreaseInAccountsReceivable_lbl0"/>
<loc xlink:type="locator" xlink:label="us-gaap_IncreaseDecreaseInOtherCurrentAssets" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInOtherCurrentAssets"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_IncreaseDecreaseInOtherCurrentAssets_lbl" xml:lang="en-US"> Other current assets </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInOtherCurrentAssets" xlink:to="us-gaap_IncreaseDecreaseInOtherCurrentAssets_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl" xml:lang="en-US"> Purchase of property and equipment </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:to="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl"/>
<loc xlink:type="locator" xlink:label="auid_PaymentsToAcquirePropertyPlantAndEquipmentFromDiscontinuedOperations" xlink:href="auid-20231231.xsd#auid_PaymentsToAcquirePropertyPlantAndEquipmentFromDiscontinuedOperations"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="auid_PaymentsToAcquirePropertyPlantAndEquipmentFromDiscontinuedOperations_lbl" xml:lang="en-US"> Purchase of property and equipment - discontinued operations </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_PaymentsToAcquirePropertyPlantAndEquipmentFromDiscontinuedOperations" xlink:to="auid_PaymentsToAcquirePropertyPlantAndEquipmentFromDiscontinuedOperations_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_PaymentsToAcquireIntangibleAssets" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsToAcquireIntangibleAssets"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_PaymentsToAcquireIntangibleAssets_lbl" xml:lang="en-US"> Purchase of intangible assets </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PaymentsToAcquireIntangibleAssets" xlink:to="us-gaap_PaymentsToAcquireIntangibleAssets_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_RepaymentsOfConvertibleDebt" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RepaymentsOfConvertibleDebt"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_RepaymentsOfConvertibleDebt_lbl" xml:lang="en-US"> Principal payments on Convertible notes </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RepaymentsOfConvertibleDebt" xlink:to="us-gaap_RepaymentsOfConvertibleDebt_lbl"/>
<loc xlink:type="locator" xlink:label="auid_CashPaidForWorkingCapitalFacility" xlink:href="auid-20231231.xsd#auid_CashPaidForWorkingCapitalFacility"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="auid_CashPaidForWorkingCapitalFacility_lbl" xml:lang="en-US"> Cash paid for working capital facility </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_CashPaidForWorkingCapitalFacility" xlink:to="auid_CashPaidForWorkingCapitalFacility_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_RepaymentsOfNotesPayable" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RepaymentsOfNotesPayable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_RepaymentsOfNotesPayable_lbl" xml:lang="en-US"> Payments on notes payable - discontinued operations </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RepaymentsOfNotesPayable" xlink:to="us-gaap_RepaymentsOfNotesPayable_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_FinanceLeasePrincipalPayments" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FinanceLeasePrincipalPayments"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_FinanceLeasePrincipalPayments_lbl" xml:lang="en-US"> Principal payments on capital lease obligation - discontinued operations </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FinanceLeasePrincipalPayments" xlink:to="us-gaap_FinanceLeasePrincipalPayments_lbl"/>
<loc xlink:type="locator" xlink:label="auid_VerifiedSoftwareLicenseMember" xlink:href="auid-20231231.xsd#auid_VerifiedSoftwareLicenseMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_VerifiedSoftwareLicenseMember_lbl" xml:lang="en-US"> Verified software license </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_VerifiedSoftwareLicenseMember" xlink:to="auid_VerifiedSoftwareLicenseMember_lbl"/>
<loc xlink:type="locator" xlink:label="auid_LegacyAuthenticationServicesMember" xlink:href="auid-20231231.xsd#auid_LegacyAuthenticationServicesMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_LegacyAuthenticationServicesMember_lbl" xml:lang="en-US"> Legacy authentication services </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_LegacyAuthenticationServicesMember" xlink:to="auid_LegacyAuthenticationServicesMember_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_CommonStockMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CommonStockMember_lbl" xml:lang="en-US"> Common Stock </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockMember" xlink:to="us-gaap_CommonStockMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_CommonStockMember_lbl0" xml:lang="en-US"> Common Stock [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockMember" xlink:to="us-gaap_CommonStockMember_lbl0"/>
<loc xlink:type="locator" xlink:label="us-gaap_AdditionalPaidInCapitalMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AdditionalPaidInCapitalMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AdditionalPaidInCapitalMember_lbl" xml:lang="en-US"> Additional Paid-in Capital </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdditionalPaidInCapitalMember" xlink:to="us-gaap_AdditionalPaidInCapitalMember_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_RetainedEarningsMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RetainedEarningsMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_RetainedEarningsMember_lbl" xml:lang="en-US"> Accumulated Deficit </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RetainedEarningsMember" xlink:to="us-gaap_RetainedEarningsMember_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeMember_lbl" xml:lang="en-US"> Accumulated Other Comprehensive Income </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccumulatedOtherComprehensiveIncomeMember" xlink:to="us-gaap_AccumulatedOtherComprehensiveIncomeMember_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_BasisOfPresentationAndSignificantAccountingPoliciesTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BasisOfPresentationAndSignificantAccountingPoliciesTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_BasisOfPresentationAndSignificantAccountingPoliciesTextBlock_lbl" xml:lang="en-US"> DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_BasisOfPresentationAndSignificantAccountingPoliciesTextBlock" xlink:to="us-gaap_BasisOfPresentationAndSignificantAccountingPoliciesTextBlock_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_CapitalizedContractCostTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CapitalizedContractCostTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CapitalizedContractCostTableTextBlock_lbl" xml:lang="en-US"> Schedule of Deferred Contract Cost Activity </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CapitalizedContractCostTableTextBlock" xlink:to="us-gaap_CapitalizedContractCostTableTextBlock_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DeferredRevenueAdditions" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredRevenueAdditions"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DeferredRevenueAdditions_lbl" xml:lang="en-US"> Additions </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredRevenueAdditions" xlink:to="us-gaap_DeferredRevenueAdditions_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_OtherDepreciationAndAmortization" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherDepreciationAndAmortization"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OtherDepreciationAndAmortization_lbl" xml:lang="en-US"> Amortization </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherDepreciationAndAmortization" xlink:to="us-gaap_OtherDepreciationAndAmortization_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock_lbl" xml:lang="en-US"> Schedule of Diluted Loss per Share </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock" xlink:to="us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_lbl" xml:lang="en-US"> Total dilutive securities </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount" xlink:to="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_OtherCurrentAssetsTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherCurrentAssetsTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OtherCurrentAssetsTextBlock_lbl" xml:lang="en-US"> OTHER CURRENT ASSETS AND OTHER ASSETS </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherCurrentAssetsTextBlock" xlink:to="us-gaap_OtherCurrentAssetsTextBlock_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ScheduleOfOtherCurrentAssetsTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfOtherCurrentAssetsTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ScheduleOfOtherCurrentAssetsTableTextBlock_lbl" xml:lang="en-US"> Schedule of Other Current Assets </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfOtherCurrentAssetsTableTextBlock" xlink:to="us-gaap_ScheduleOfOtherCurrentAssetsTableTextBlock_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_PrepaidInsurance" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PrepaidInsurance"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PrepaidInsurance_lbl" xml:lang="en-US"> Prepaid Insurance </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PrepaidInsurance" xlink:to="us-gaap_PrepaidInsurance_lbl"/>
<loc xlink:type="locator" xlink:label="auid_UnamortizedWorkingCapitalFacilityFeesCurrent" xlink:href="auid-20231231.xsd#auid_UnamortizedWorkingCapitalFacilityFeesCurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_UnamortizedWorkingCapitalFacilityFeesCurrent_lbl" xml:lang="en-US"> Unamortized working capital facility fees - current </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnamortizedWorkingCapitalFacilityFeesCurrent" xlink:to="auid_UnamortizedWorkingCapitalFacilityFeesCurrent_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_OtherPrepaidExpenseCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherPrepaidExpenseCurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OtherPrepaidExpenseCurrent_lbl" xml:lang="en-US"> Prepaid Third Party Services </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherPrepaidExpenseCurrent" xlink:to="us-gaap_OtherPrepaidExpenseCurrent_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_PrepaidExpenseAndOtherAssets" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PrepaidExpenseAndOtherAssets"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PrepaidExpenseAndOtherAssets_lbl" xml:lang="en-US"> Other </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PrepaidExpenseAndOtherAssets" xlink:to="us-gaap_PrepaidExpenseAndOtherAssets_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ScheduleOfOtherAssetsTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfOtherAssetsTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ScheduleOfOtherAssetsTableTextBlock_lbl" xml:lang="en-US"> Schedule of Other Assets </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfOtherAssetsTableTextBlock" xlink:to="us-gaap_ScheduleOfOtherAssetsTableTextBlock_lbl"/>
<loc xlink:type="locator" xlink:label="auid_UnamortizedWorkingCapitalFacilityFeesNonCurrent" xlink:href="auid-20231231.xsd#auid_UnamortizedWorkingCapitalFacilityFeesNonCurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_UnamortizedWorkingCapitalFacilityFeesNonCurrent_lbl" xml:lang="en-US"> Unamortized working capital facility fees - non current </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnamortizedWorkingCapitalFacilityFeesNonCurrent" xlink:to="auid_UnamortizedWorkingCapitalFacilityFeesNonCurrent_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_OtherAssets" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherAssets"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OtherAssets_lbl" xml:lang="en-US"> Other </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherAssets" xlink:to="us-gaap_OtherAssets_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock_lbl" xml:lang="en-US"> PROPERTY AND EQUIPMENT, NET </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock" xlink:to="us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_PropertyPlantAndEquipmentTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PropertyPlantAndEquipmentTextBlock_lbl" xml:lang="en-US"> Schedule of Property and Equipment </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentTextBlock" xlink:to="us-gaap_PropertyPlantAndEquipmentTextBlock_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_PropertyPlantAndEquipmentUsefulLife" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentUsefulLife"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PropertyPlantAndEquipmentUsefulLife_lbl" xml:lang="en-US"> Estimated Useful Lives </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentUsefulLife" xlink:to="us-gaap_PropertyPlantAndEquipmentUsefulLife_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_PropertyPlantAndEquipmentGross" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentGross"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PropertyPlantAndEquipmentGross_lbl" xml:lang="en-US"> Property and equipment, gross </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentGross" xlink:to="us-gaap_PropertyPlantAndEquipmentGross_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_PropertyPlantAndEquipmentNet" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl" xml:lang="en-US"> Property and Equipment, Net </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentNet" xlink:to="us-gaap_PropertyPlantAndEquipmentNet_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock_lbl" xml:lang="en-US"> INTANGIBLE ASSETS, NET (OTHER THAN GOODWILL) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock" xlink:to="us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock_lbl" xml:lang="en-US"> Schedule of Intangible Assets </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock" xlink:to="us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_FiniteLivedIntangibleAssetUsefulLife" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetUsefulLife"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_FiniteLivedIntangibleAssetUsefulLife_lbl" xml:lang="en-US"> Useful Lives </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FiniteLivedIntangibleAssetUsefulLife" xlink:to="us-gaap_FiniteLivedIntangibleAssetUsefulLife_lbl"/>
<loc xlink:type="locator" xlink:label="auid_UnlabeledAbstract20" xlink:href="auid-20231231.xsd#auid_UnlabeledAbstract20"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_UnlabeledAbstract20_lbl" xml:lang="en-US"> </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract20" xlink:to="auid_UnlabeledAbstract20_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_FinitelivedIntangibleAssetsAcquired1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FinitelivedIntangibleAssetsAcquired1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_FinitelivedIntangibleAssetsAcquired1_lbl" xml:lang="en-US"> Additions </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FinitelivedIntangibleAssetsAcquired1" xlink:to="us-gaap_FinitelivedIntangibleAssetsAcquired1_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_AssetImpairmentCharges" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetImpairmentCharges"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AssetImpairmentCharges_lbl" xml:lang="en-US"> Impairment of assets </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetImpairmentCharges" xlink:to="us-gaap_AssetImpairmentCharges_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_CostOfGoodsAndServicesSoldAmortization" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CostOfGoodsAndServicesSoldAmortization"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CostOfGoodsAndServicesSoldAmortization_lbl" xml:lang="en-US"> Cost </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CostOfGoodsAndServicesSoldAmortization" xlink:to="us-gaap_CostOfGoodsAndServicesSoldAmortization_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock_lbl" xml:lang="en-US"> Schedule of Future Amortization of Intangible Assets </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock" xlink:to="us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_lbl" xml:lang="en-US"> 2024 </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths" xlink:to="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_lbl" xml:lang="en-US"> 2025 </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo" xlink:to="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_lbl" xml:lang="en-US"> 2026 </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree" xlink:to="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_lbl" xml:lang="en-US"> 2027 </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour" xlink:to="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_lbl" xml:lang="en-US"> 2028 </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive" xlink:to="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive_lbl" xml:lang="en-US"> Thereafter </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive" xlink:to="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_AccountsPayableAndAccruedLiabilitiesDisclosureTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesDisclosureTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AccountsPayableAndAccruedLiabilitiesDisclosureTextBlock_lbl" xml:lang="en-US"> ACCOUNTS PAYABLE AND ACCRUED EXPENSES </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountsPayableAndAccruedLiabilitiesDisclosureTextBlock" xlink:to="us-gaap_AccountsPayableAndAccruedLiabilitiesDisclosureTextBlock_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ScheduleOfAccountsPayableAndAccruedLiabilitiesTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfAccountsPayableAndAccruedLiabilitiesTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ScheduleOfAccountsPayableAndAccruedLiabilitiesTableTextBlock_lbl" xml:lang="en-US"> Schedule of Accounts Payable and Accrued Expenses </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfAccountsPayableAndAccruedLiabilitiesTableTextBlock" xlink:to="us-gaap_ScheduleOfAccountsPayableAndAccruedLiabilitiesTableTextBlock_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_AccountsPayableTradeCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccountsPayableTradeCurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AccountsPayableTradeCurrent_lbl" xml:lang="en-US"> Trade payables </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountsPayableTradeCurrent" xlink:to="us-gaap_AccountsPayableTradeCurrent_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_AccruedPayrollTaxesCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccruedPayrollTaxesCurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AccruedPayrollTaxesCurrent_lbl" xml:lang="en-US"> Accrued payroll and related expenses </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccruedPayrollTaxesCurrent" xlink:to="us-gaap_AccruedPayrollTaxesCurrent_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_OtherAccruedLiabilitiesCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherAccruedLiabilitiesCurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OtherAccruedLiabilitiesCurrent_lbl" xml:lang="en-US"> Other </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherAccruedLiabilitiesCurrent" xlink:to="us-gaap_OtherAccruedLiabilitiesCurrent_lbl"/>
<loc xlink:type="locator" xlink:label="auid_WorkingCapitalFaciltiyTextBlock" xlink:href="auid-20231231.xsd#auid_WorkingCapitalFaciltiyTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_WorkingCapitalFaciltiyTextBlock_lbl" xml:lang="en-US"> WORKING CAPITAL FACILITY </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_WorkingCapitalFaciltiyTextBlock" xlink:to="auid_WorkingCapitalFaciltiyTextBlock_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DebtDisclosureTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtDisclosureTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DebtDisclosureTextBlock_lbl" xml:lang="en-US"> CONVERTIBLE NOTES PAYABLE </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtDisclosureTextBlock" xlink:to="us-gaap_DebtDisclosureTextBlock_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ConvertibleDebtTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConvertibleDebtTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ConvertibleDebtTableTextBlock_lbl" xml:lang="en-US"> Schedule of the Convertible Notes Payable Outstanding </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConvertibleDebtTableTextBlock" xlink:to="us-gaap_ConvertibleDebtTableTextBlock_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ConvertibleDebt" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConvertibleDebt"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ConvertibleDebt_lbl" xml:lang="en-US"> 9.75% convertible notes due March 31, 2025 </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConvertibleDebt" xlink:to="us-gaap_ConvertibleDebt_lbl"/>
<loc xlink:type="locator" xlink:label="auid_PercentageOfConvertibleNotesDue" xlink:href="auid-20231231.xsd#auid_PercentageOfConvertibleNotesDue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_PercentageOfConvertibleNotesDue_lbl" xml:lang="en-US"> Percentage of convertible notes due </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_PercentageOfConvertibleNotesDue" xlink:to="auid_PercentageOfConvertibleNotesDue_lbl"/>
<loc xlink:type="locator" xlink:label="auid_UnlabeledAbstract21" xlink:href="auid-20231231.xsd#auid_UnlabeledAbstract21"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_UnlabeledAbstract21_lbl" xml:lang="en-US"> </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract21" xlink:to="auid_UnlabeledAbstract21_lbl"/>
<loc xlink:type="locator" xlink:label="auid_LessAbstract" xlink:href="auid-20231231.xsd#auid_LessAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_LessAbstract_lbl" xml:lang="en-US"> less </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_LessAbstract" xlink:to="auid_LessAbstract_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyTransactionsDisclosureTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RelatedPartyTransactionsDisclosureTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_RelatedPartyTransactionsDisclosureTextBlock_lbl" xml:lang="en-US"> RELATED PARTY TRANSACTIONS </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RelatedPartyTransactionsDisclosureTextBlock" xlink:to="us-gaap_RelatedPartyTransactionsDisclosureTextBlock_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ShareholdersEquityAndShareBasedPaymentsTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareholdersEquityAndShareBasedPaymentsTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ShareholdersEquityAndShareBasedPaymentsTextBlock_lbl" xml:lang="en-US"> STOCKHOLDERS’ EQUITY </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareholdersEquityAndShareBasedPaymentsTextBlock" xlink:to="us-gaap_ShareholdersEquityAndShareBasedPaymentsTextBlock_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ScheduleOfShareBasedCompensationActivityTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfShareBasedCompensationActivityTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ScheduleOfShareBasedCompensationActivityTableTextBlock_lbl" xml:lang="en-US"> Schedule of Company’s Warrant Activity </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfShareBasedCompensationActivityTableTextBlock" xlink:to="us-gaap_ScheduleOfShareBasedCompensationActivityTableTextBlock_lbl"/>
<loc xlink:type="locator" xlink:label="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingWeightedAverageRemainingContractualTerm" xlink:href="auid-20231231.xsd#auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingWeightedAverageRemainingContractualTerm"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingWeightedAverageRemainingContractualTerm_lbl" xml:lang="en-US"> Weighted Average Remaining Life, Ending Outstanding </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingWeightedAverageRemainingContractualTerm" xlink:to="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingWeightedAverageRemainingContractualTerm_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted_lbl" xml:lang="en-US"> Number of share, Granted </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted_lbl"/>
<loc xlink:type="locator" xlink:label="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGrantedWeightedAverageExercisePrice" xlink:href="auid-20231231.xsd#auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGrantedWeightedAverageExercisePrice"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGrantedWeightedAverageExercisePrice_lbl" xml:lang="en-US"> Weighted Average Exercise Price, Granted </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGrantedWeightedAverageExercisePrice" xlink:to="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGrantedWeightedAverageExercisePrice_lbl"/>
<loc xlink:type="locator" xlink:label="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGrantedWeightedAverageRemainingContractualTerm" xlink:href="auid-20231231.xsd#auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGrantedWeightedAverageRemainingContractualTerm"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGrantedWeightedAverageRemainingContractualTerm_lbl" xml:lang="en-US"> Weighted Average Remaining Life, Granted </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGrantedWeightedAverageRemainingContractualTerm" xlink:to="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGrantedWeightedAverageRemainingContractualTerm_lbl"/>
<loc xlink:type="locator" xlink:label="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercisedWeightedAverageExercisePrice" xlink:href="auid-20231231.xsd#auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercisedWeightedAverageExercisePrice"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercisedWeightedAverageExercisePrice_lbl" xml:lang="en-US"> Weighted Average Exercise Price, Exercised/Cancelled </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercisedWeightedAverageExercisePrice" xlink:to="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercisedWeightedAverageExercisePrice_lbl"/>
<loc xlink:type="locator" xlink:label="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercisedWeightedAverageRemainingContractualTerm" xlink:href="auid-20231231.xsd#auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercisedWeightedAverageRemainingContractualTerm"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercisedWeightedAverageRemainingContractualTerm_lbl" xml:lang="en-US"> Weighted Average Remaining Life, Exercised/Cancelled </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercisedWeightedAverageRemainingContractualTerm" xlink:to="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercisedWeightedAverageRemainingContractualTerm_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock_lbl" xml:lang="en-US"> Schedule of Grant Date Fair Market Value of Options Granted </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock" xlink:to="us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_lbl" xml:lang="en-US"> Expected volatility </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_lbl" xml:lang="en-US"> Expected term </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1" xlink:to="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_lbl" xml:lang="en-US"> Risk free rate </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_lbl" xml:lang="en-US"> Dividend rate </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock_lbl" xml:lang="en-US"> Schedule of Activity Related to Stock Options </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock" xlink:to="us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_lbl" xml:lang="en-US"> Weighted Average Contractual Life, Ending Outstanding </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2" xlink:to="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_lbl" xml:lang="en-US"> Number of Shares, Granted </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_lbl" xml:lang="en-US"> Weighted Average Exercise Price, Granted </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xlink:to="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_lbl"/>
<loc xlink:type="locator" xlink:label="auid_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsGrantedWeightedAverageRemainingContractualTerm1" xlink:href="auid-20231231.xsd#auid_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsGrantedWeightedAverageRemainingContractualTerm1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsGrantedWeightedAverageRemainingContractualTerm1_lbl" xml:lang="en-US"> Weighted Average Contractual Life, Granted </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsGrantedWeightedAverageRemainingContractualTerm1" xlink:to="auid_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsGrantedWeightedAverageRemainingContractualTerm1_lbl"/>
<loc xlink:type="locator" xlink:label="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantInPeriodGrantDateIntrinsicValue" xlink:href="auid-20231231.xsd#auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantInPeriodGrantDateIntrinsicValue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantInPeriodGrantDateIntrinsicValue_lbl" xml:lang="en-US"> Aggregate Intrinsic Value, Granted </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantInPeriodGrantDateIntrinsicValue" xlink:to="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantInPeriodGrantDateIntrinsicValue_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_lbl" xml:lang="en-US"> Weighted Average Exercise Price, Exercised </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" xlink:to="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_lbl"/>
<loc xlink:type="locator" xlink:label="auid_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsWeightedAverageContractualLifeExercised" xlink:href="auid-20231231.xsd#auid_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsWeightedAverageContractualLifeExercised"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsWeightedAverageContractualLifeExercised_lbl" xml:lang="en-US"> Weighted Average Contractual Life, Exercised </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsWeightedAverageContractualLifeExercised" xlink:to="auid_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsWeightedAverageContractualLifeExercised_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_lbl" xml:lang="en-US"> Aggregate Intrinsic Value, Exercised </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice_lbl" xml:lang="en-US"> Weighted Average Exercise Price, Forfeited/cancelled </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice" xlink:to="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice_lbl"/>
<loc xlink:type="locator" xlink:label="auid_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsWeightedAverageContractualLifeForfeitedcancelled" xlink:href="auid-20231231.xsd#auid_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsWeightedAverageContractualLifeForfeitedcancelled"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsWeightedAverageContractualLifeForfeitedcancelled_lbl" xml:lang="en-US"> Weighted Average Contractual Life, Forfeited/cancelled </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsWeightedAverageContractualLifeForfeitedcancelled" xlink:to="auid_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsWeightedAverageContractualLifeForfeitedcancelled_lbl"/>
<loc xlink:type="locator" xlink:label="auid_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsAggregateIntrinsicValueForfeitedcancelled" xlink:href="auid-20231231.xsd#auid_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsAggregateIntrinsicValueForfeitedcancelled"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsAggregateIntrinsicValueForfeitedcancelled_lbl" xml:lang="en-US"> Aggregate Intrinsic Value, Forfeited/cancelled </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsAggregateIntrinsicValueForfeitedcancelled" xlink:to="auid_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsAggregateIntrinsicValueForfeitedcancelled_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_lbl" xml:lang="en-US"> Number of Shares, Exercisable </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_lbl" xml:lang="en-US"> Weighted Average Exercise Price, Exercisable </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_lbl" xml:lang="en-US"> Weighted Average Contractual Life, Exercisable </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1" xlink:to="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1_lbl" xml:lang="en-US"> Aggregate Intrinsic Value, Exercisable </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1" xlink:to="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTextBlock_lbl" xml:lang="en-US"> Schedule of Stock Option Information </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTextBlock" xlink:to="us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTextBlock_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions_lbl" xml:lang="en-US"> Outstanding </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions" xlink:to="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2_lbl" xml:lang="en-US"> Contractual Life </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2" xlink:to="us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions_lbl" xml:lang="en-US"> Exercisable </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions" xlink:to="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_IncomeTaxDisclosureTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeTaxDisclosureTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_IncomeTaxDisclosureTextBlock_lbl" xml:lang="en-US"> INCOME TAXES </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeTaxDisclosureTextBlock" xlink:to="us-gaap_IncomeTaxDisclosureTextBlock_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock_lbl" xml:lang="en-US"> Schedule of Company’s Loss Before Income Taxes from Us and Foreign Sources </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock" xlink:to="us-gaap_ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic_lbl" xml:lang="en-US"> United States </label>
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<loc xlink:type="locator" xlink:label="us-gaap_IncomeLossAttributableToParent" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeLossAttributableToParent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_IncomeLossAttributableToParent_lbl" xml:lang="en-US"> Loss before income taxes </label>
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<loc xlink:type="locator" xlink:label="us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock_lbl" xml:lang="en-US"> Schedule of the U.S. Federal Statutory Tax Rate and the Company’s Effective Tax Rate </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock" xlink:to="us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_lbl" xml:lang="en-US"> US Federal statutory federal income tax </label>
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<loc xlink:type="locator" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes_lbl" xml:lang="en-US"> State taxes </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes" xlink:to="us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments_lbl" xml:lang="en-US"> Other deferred adjustments </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments" xlink:to="us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationTaxCreditsResearch" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationTaxCreditsResearch"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationTaxCreditsResearch_lbl" xml:lang="en-US"> R&D credit </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EffectiveIncomeTaxRateReconciliationTaxCreditsResearch" xlink:to="us-gaap_EffectiveIncomeTaxRateReconciliationTaxCreditsResearch_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance_lbl" xml:lang="en-US"> Change in valuation allowance </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance" xlink:to="us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance_lbl"/>
<loc xlink:type="locator" xlink:label="auid_UnlabeledAbstract22" xlink:href="auid-20231231.xsd#auid_UnlabeledAbstract22"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_UnlabeledAbstract22_lbl" xml:lang="en-US"> </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract22" xlink:to="auid_UnlabeledAbstract22_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationTaxCredits" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationTaxCredits"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationTaxCredits_lbl" xml:lang="en-US"> Total income tax provision </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EffectiveIncomeTaxRateReconciliationTaxCredits" xlink:to="us-gaap_EffectiveIncomeTaxRateReconciliationTaxCredits_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock_lbl" xml:lang="en-US"> Schedule of Deferred Tax Assets and Liabilities </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock" xlink:to="us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DeferredTaxAssetsNetAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsNetAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DeferredTaxAssetsNetAbstract_lbl" xml:lang="en-US"> Deferred tax assets </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxAssetsNetAbstract" xlink:to="us-gaap_DeferredTaxAssetsNetAbstract_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DeferredTaxAssetsOperatingLossCarryforwards" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsOperatingLossCarryforwards"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DeferredTaxAssetsOperatingLossCarryforwards_lbl" xml:lang="en-US"> Net operating loss </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxAssetsOperatingLossCarryforwards" xlink:to="us-gaap_DeferredTaxAssetsOperatingLossCarryforwards_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsOther" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsOther"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsOther_lbl" xml:lang="en-US"> Stock options </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsOther" xlink:to="us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsOther_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsForeign" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsForeign"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsForeign_lbl" xml:lang="en-US"> Federal tax credits </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsForeign" xlink:to="us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsForeign_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DeferredTaxAssetsGoodwillAndIntangibleAssets" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsGoodwillAndIntangibleAssets"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DeferredTaxAssetsGoodwillAndIntangibleAssets_lbl" xml:lang="en-US"> Basis difference in intangible and fixed assets </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxAssetsGoodwillAndIntangibleAssets" xlink:to="us-gaap_DeferredTaxAssetsGoodwillAndIntangibleAssets_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DeferredTaxAssetsOther" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsOther"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DeferredTaxAssetsOther_lbl" xml:lang="en-US"> Accrued payroll </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxAssetsOther" xlink:to="us-gaap_DeferredTaxAssetsOther_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts_lbl" xml:lang="en-US"> Accounting reserves </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts" xlink:to="us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DeferredTaxAssetsCapitalLossCarryforwards" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsCapitalLossCarryforwards"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DeferredTaxAssetsCapitalLossCarryforwards_lbl" xml:lang="en-US"> Capital loss </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxAssetsCapitalLossCarryforwards" xlink:to="us-gaap_DeferredTaxAssetsCapitalLossCarryforwards_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DisposalGroupsIncludingDiscontinuedOperationsDisclosureTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisposalGroupsIncludingDiscontinuedOperationsDisclosureTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DisposalGroupsIncludingDiscontinuedOperationsDisclosureTextBlock_lbl" xml:lang="en-US"> DISCONTINUED OPERATIONS AND ASSETS HELD FOR SALE </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DisposalGroupsIncludingDiscontinuedOperationsDisclosureTextBlock" xlink:to="us-gaap_DisposalGroupsIncludingDiscontinuedOperationsDisclosureTextBlock_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ScheduleOfOtherAssetsAndOtherLiabilitiesTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfOtherAssetsAndOtherLiabilitiesTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ScheduleOfOtherAssetsAndOtherLiabilitiesTableTextBlock_lbl" xml:lang="en-US"> Schedule of Assets and Liabilities of the MultiPay Sale and Consideration Received </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfOtherAssetsAndOtherLiabilitiesTableTextBlock" xlink:to="us-gaap_ScheduleOfOtherAssetsAndOtherLiabilitiesTableTextBlock_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentCurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentCurrent_lbl" xml:lang="en-US"> Property and equipment write-off </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentCurrent" xlink:to="us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentCurrent_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent_lbl" xml:lang="en-US"> Net assets write-off </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent" xlink:to="us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent_lbl"/>
<loc xlink:type="locator" xlink:label="auid_UnlabeledAbstract23" xlink:href="auid-20231231.xsd#auid_UnlabeledAbstract23"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_UnlabeledAbstract23_lbl" xml:lang="en-US"> </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract23" xlink:to="auid_UnlabeledAbstract23_lbl"/>
<loc xlink:type="locator" xlink:label="auid_SaleConsiderationOnDispositionOfNetAssetsAbstract" xlink:href="auid-20231231.xsd#auid_SaleConsiderationOnDispositionOfNetAssetsAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_SaleConsiderationOnDispositionOfNetAssetsAbstract_lbl" xml:lang="en-US"> Sale consideration on disposition of net assets: </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_SaleConsiderationOnDispositionOfNetAssetsAbstract" xlink:to="auid_SaleConsiderationOnDispositionOfNetAssetsAbstract_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationConsideration" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationConsideration"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationConsideration_lbl" xml:lang="en-US"> Sale consideration </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DisposalGroupIncludingDiscontinuedOperationConsideration" xlink:to="us-gaap_DisposalGroupIncludingDiscontinuedOperationConsideration_lbl"/>
<loc xlink:type="locator" xlink:label="auid_DisposalGroupIncludingDiscontinuedOperatioNetConsideration" xlink:href="auid-20231231.xsd#auid_DisposalGroupIncludingDiscontinuedOperatioNetConsideration"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_DisposalGroupIncludingDiscontinuedOperatioNetConsideration_lbl" xml:lang="en-US"> Net Consideration </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_DisposalGroupIncludingDiscontinuedOperatioNetConsideration" xlink:to="auid_DisposalGroupIncludingDiscontinuedOperatioNetConsideration_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationForeignCurrencyTranslationGainsLosses" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationForeignCurrencyTranslationGainsLosses"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationForeignCurrencyTranslationGainsLosses_lbl" xml:lang="en-US"> Foreign currency translation: </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DisposalGroupIncludingDiscontinuedOperationForeignCurrencyTranslationGainsLosses" xlink:to="us-gaap_DisposalGroupIncludingDiscontinuedOperationForeignCurrencyTranslationGainsLosses_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationForeignCurrencyTranslationGainsLosses_lbl0" xml:lang="en-US"> Foreign currency translation gain </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DisposalGroupIncludingDiscontinuedOperationForeignCurrencyTranslationGainsLosses" xlink:to="us-gaap_DisposalGroupIncludingDiscontinuedOperationForeignCurrencyTranslationGainsLosses_lbl0"/>
<loc xlink:type="locator" xlink:label="srt_ScheduleOfCondensedIncomeStatementTableTextBlock" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ScheduleOfCondensedIncomeStatementTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="srt_ScheduleOfCondensedIncomeStatementTableTextBlock_lbl" xml:lang="en-US"> Schedule of Operations of Cards Plus and MultiPay </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_ScheduleOfCondensedIncomeStatementTableTextBlock" xlink:to="srt_ScheduleOfCondensedIncomeStatementTableTextBlock_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue_lbl" xml:lang="en-US"> Discontinued Operations Total Revenues, net </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue" xlink:to="us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue_lbl"/>
<loc xlink:type="locator" xlink:label="auid_UnlabeledAbstract24" xlink:href="auid-20231231.xsd#auid_UnlabeledAbstract24"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_UnlabeledAbstract24_lbl" xml:lang="en-US"> </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract24" xlink:to="auid_UnlabeledAbstract24_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold_lbl" xml:lang="en-US"> Cost of sales </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold" xlink:to="us-gaap_DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold_lbl0" xml:lang="en-US"> Cost of sale </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold" xlink:to="us-gaap_DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold_lbl0"/>
<loc xlink:type="locator" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationGeneralAndAdministrativeExpense" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationGeneralAndAdministrativeExpense"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationGeneralAndAdministrativeExpense_lbl" xml:lang="en-US"> General and administrative </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DisposalGroupIncludingDiscontinuedOperationGeneralAndAdministrativeExpense" xlink:to="us-gaap_DisposalGroupIncludingDiscontinuedOperationGeneralAndAdministrativeExpense_lbl"/>
<loc xlink:type="locator" xlink:label="auid_DisposalGroupIncludingDiscontinuedOperationImpairmentLoss" xlink:href="auid-20231231.xsd#auid_DisposalGroupIncludingDiscontinuedOperationImpairmentLoss"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_DisposalGroupIncludingDiscontinuedOperationImpairmentLoss_lbl" xml:lang="en-US"> Impairment loss </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_DisposalGroupIncludingDiscontinuedOperationImpairmentLoss" xlink:to="auid_DisposalGroupIncludingDiscontinuedOperationImpairmentLoss_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationDepreciationAndAmortization" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationDepreciationAndAmortization"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationDepreciationAndAmortization_lbl" xml:lang="en-US"> Depreciation and amortization </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DisposalGroupIncludingDiscontinuedOperationDepreciationAndAmortization" xlink:to="us-gaap_DisposalGroupIncludingDiscontinuedOperationDepreciationAndAmortization_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingExpense" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingExpense"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingExpense_lbl" xml:lang="en-US"> Total operating expenses </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingExpense" xlink:to="us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingExpense_lbl"/>
<loc xlink:type="locator" xlink:label="auid_UnlabeledAbstract25" xlink:href="auid-20231231.xsd#auid_UnlabeledAbstract25"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_UnlabeledAbstract25_lbl" xml:lang="en-US"> </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract25" xlink:to="auid_UnlabeledAbstract25_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss_lbl" xml:lang="en-US"> Income (Loss) from operations </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss" xlink:to="us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss_lbl"/>
<loc xlink:type="locator" xlink:label="auid_UnlabeledAbstract26" xlink:href="auid-20231231.xsd#auid_UnlabeledAbstract26"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_UnlabeledAbstract26_lbl" xml:lang="en-US"> </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract26" xlink:to="auid_UnlabeledAbstract26_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_OtherIncomeAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherIncomeAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OtherIncomeAbstract_lbl" xml:lang="en-US"> Other Income (Expense): </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherIncomeAbstract" xlink:to="us-gaap_OtherIncomeAbstract_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_OtherIncomeAbstract_lbl0" xml:lang="en-US"> Other Income: </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherIncomeAbstract" xlink:to="us-gaap_OtherIncomeAbstract_lbl0"/>
<loc xlink:type="locator" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherIncome" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherIncome"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherIncome_lbl" xml:lang="en-US"> Other income (expense), net </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherIncome" xlink:to="us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherIncome_lbl"/>
<loc xlink:type="locator" xlink:label="auid_DisposalGroupIncludingDiscontinuedOperationNonoperatingIncomeexpenseNet" xlink:href="auid-20231231.xsd#auid_DisposalGroupIncludingDiscontinuedOperationNonoperatingIncomeexpenseNet"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_DisposalGroupIncludingDiscontinuedOperationNonoperatingIncomeexpenseNet_lbl" xml:lang="en-US"> Other income, net </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_DisposalGroupIncludingDiscontinuedOperationNonoperatingIncomeexpenseNet" xlink:to="auid_DisposalGroupIncludingDiscontinuedOperationNonoperatingIncomeexpenseNet_lbl"/>
<loc xlink:type="locator" xlink:label="auid_UnlabeledAbstract27" xlink:href="auid-20231231.xsd#auid_UnlabeledAbstract27"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_UnlabeledAbstract27_lbl" xml:lang="en-US"> </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract27" xlink:to="auid_UnlabeledAbstract27_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax_lbl" xml:lang="en-US"> Income (Loss) before income taxes </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax" xlink:to="us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax_lbl"/>
<loc xlink:type="locator" xlink:label="auid_UnlabeledAbstract28" xlink:href="auid-20231231.xsd#auid_UnlabeledAbstract28"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_UnlabeledAbstract28_lbl" xml:lang="en-US"> </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract28" xlink:to="auid_UnlabeledAbstract28_lbl"/>
<loc xlink:type="locator" xlink:label="auid_UnlabeledAbstract29" xlink:href="auid-20231231.xsd#auid_UnlabeledAbstract29"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_UnlabeledAbstract29_lbl" xml:lang="en-US"> </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract29" xlink:to="auid_UnlabeledAbstract29_lbl"/>
<loc xlink:type="locator" xlink:label="auid_CardsPlusAbstract" xlink:href="auid-20231231.xsd#auid_CardsPlusAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_CardsPlusAbstract_lbl" xml:lang="en-US"> Cards Plus </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_CardsPlusAbstract" xlink:to="auid_CardsPlusAbstract_lbl"/>
<loc xlink:type="locator" xlink:label="auid_UnlabeledAbstract30" xlink:href="auid-20231231.xsd#auid_UnlabeledAbstract30"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_UnlabeledAbstract30_lbl" xml:lang="en-US"> </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract30" xlink:to="auid_UnlabeledAbstract30_lbl"/>
<loc xlink:type="locator" xlink:label="auid_UnlabeledAbstract31" xlink:href="auid-20231231.xsd#auid_UnlabeledAbstract31"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_UnlabeledAbstract31_lbl" xml:lang="en-US"> </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract31" xlink:to="auid_UnlabeledAbstract31_lbl"/>
<loc xlink:type="locator" xlink:label="auid_UnlabeledAbstract32" xlink:href="auid-20231231.xsd#auid_UnlabeledAbstract32"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_UnlabeledAbstract32_lbl" xml:lang="en-US"> </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract32" xlink:to="auid_UnlabeledAbstract32_lbl"/>
<loc xlink:type="locator" xlink:label="auid_UnlabeledAbstract33" xlink:href="auid-20231231.xsd#auid_UnlabeledAbstract33"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_UnlabeledAbstract33_lbl" xml:lang="en-US"> </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract33" xlink:to="auid_UnlabeledAbstract33_lbl"/>
<loc xlink:type="locator" xlink:label="auid_UnlabeledAbstract34" xlink:href="auid-20231231.xsd#auid_UnlabeledAbstract34"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_UnlabeledAbstract34_lbl" xml:lang="en-US"> </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract34" xlink:to="auid_UnlabeledAbstract34_lbl"/>
<loc xlink:type="locator" xlink:label="auid_UnlabeledAbstract35" xlink:href="auid-20231231.xsd#auid_UnlabeledAbstract35"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_UnlabeledAbstract35_lbl" xml:lang="en-US"> </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract35" xlink:to="auid_UnlabeledAbstract35_lbl"/>
<loc xlink:type="locator" xlink:label="auid_MultiPayAbstract" xlink:href="auid-20231231.xsd#auid_MultiPayAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_MultiPayAbstract_lbl" xml:lang="en-US"> MultiPay </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_MultiPayAbstract" xlink:to="auid_MultiPayAbstract_lbl"/>
<loc xlink:type="locator" xlink:label="auid_UnlabeledAbstract36" xlink:href="auid-20231231.xsd#auid_UnlabeledAbstract36"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_UnlabeledAbstract36_lbl" xml:lang="en-US"> </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract36" xlink:to="auid_UnlabeledAbstract36_lbl"/>
<loc xlink:type="locator" xlink:label="auid_UnlabeledAbstract37" xlink:href="auid-20231231.xsd#auid_UnlabeledAbstract37"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_UnlabeledAbstract37_lbl" xml:lang="en-US"> </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract37" xlink:to="auid_UnlabeledAbstract37_lbl"/>
<loc xlink:type="locator" xlink:label="auid_UnlabeledAbstract38" xlink:href="auid-20231231.xsd#auid_UnlabeledAbstract38"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_UnlabeledAbstract38_lbl" xml:lang="en-US"> </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract38" xlink:to="auid_UnlabeledAbstract38_lbl"/>
<loc xlink:type="locator" xlink:label="auid_UnlabeledAbstract39" xlink:href="auid-20231231.xsd#auid_UnlabeledAbstract39"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_UnlabeledAbstract39_lbl" xml:lang="en-US"> </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract39" xlink:to="auid_UnlabeledAbstract39_lbl"/>
<loc xlink:type="locator" xlink:label="auid_UnlabeledAbstract40" xlink:href="auid-20231231.xsd#auid_UnlabeledAbstract40"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_UnlabeledAbstract40_lbl" xml:lang="en-US"> </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract40" xlink:to="auid_UnlabeledAbstract40_lbl"/>
<loc xlink:type="locator" xlink:label="auid_UnlabeledAbstract41" xlink:href="auid-20231231.xsd#auid_UnlabeledAbstract41"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_UnlabeledAbstract41_lbl" xml:lang="en-US"> </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract41" xlink:to="auid_UnlabeledAbstract41_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ScheduleOfDisposalGroupsIncludingDiscontinuedOperationsIncomeStatementBalanceSheetAndAdditionalDisclosuresTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfDisposalGroupsIncludingDiscontinuedOperationsIncomeStatementBalanceSheetAndAdditionalDisclosuresTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ScheduleOfDisposalGroupsIncludingDiscontinuedOperationsIncomeStatementBalanceSheetAndAdditionalDisclosuresTextBlock_lbl" xml:lang="en-US"> Schedule of Discontinued Operations Assets Held for Sale Criteria for Cards Plus and the MultiPay Operations </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfDisposalGroupsIncludingDiscontinuedOperationsIncomeStatementBalanceSheetAndAdditionalDisclosuresTextBlock" xlink:to="us-gaap_ScheduleOfDisposalGroupsIncludingDiscontinuedOperationsIncomeStatementBalanceSheetAndAdditionalDisclosuresTextBlock_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_lbl" xml:lang="en-US"> Discontinued Operations Current Assets: </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract" xlink:to="us-gaap_DiscontinuedOperationsAndDisposalGroupsAbstract_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationCash" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationCash"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationCash_lbl" xml:lang="en-US"> Cash </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DisposalGroupIncludingDiscontinuedOperationCash" xlink:to="us-gaap_DisposalGroupIncludingDiscontinuedOperationCash_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsNotesAndLoansReceivableNet" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsNotesAndLoansReceivableNet"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsNotesAndLoansReceivableNet_lbl" xml:lang="en-US"> Accounts receivable, net </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsNotesAndLoansReceivableNet" xlink:to="us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsNotesAndLoansReceivableNet_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets_lbl" xml:lang="en-US"> Other current assets </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets" xlink:to="us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_AssetsHeldForSaleNotPartOfDisposalGroupCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetsHeldForSaleNotPartOfDisposalGroupCurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AssetsHeldForSaleNotPartOfDisposalGroupCurrent_lbl" xml:lang="en-US"> Current assets held for sale </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsHeldForSaleNotPartOfDisposalGroupCurrent" xlink:to="us-gaap_AssetsHeldForSaleNotPartOfDisposalGroupCurrent_lbl"/>
<loc xlink:type="locator" xlink:label="auid_UnlabeledAbstract42" xlink:href="auid-20231231.xsd#auid_UnlabeledAbstract42"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_UnlabeledAbstract42_lbl" xml:lang="en-US"> </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract42" xlink:to="auid_UnlabeledAbstract42_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_OtherAssetsNoncurrentAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherAssetsNoncurrentAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OtherAssetsNoncurrentAbstract_lbl" xml:lang="en-US"> Noncurrent Assets: </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherAssetsNoncurrentAbstract" xlink:to="us-gaap_OtherAssetsNoncurrentAbstract_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipment" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipment"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipment_lbl" xml:lang="en-US"> Property and equipment, net </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipment" xlink:to="us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipment_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_AssetsHeldForSaleNotPartOfDisposalGroupCurrentOther" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetsHeldForSaleNotPartOfDisposalGroupCurrentOther"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AssetsHeldForSaleNotPartOfDisposalGroupCurrentOther_lbl" xml:lang="en-US"> Noncurrent assets held for sale </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsHeldForSaleNotPartOfDisposalGroupCurrentOther" xlink:to="us-gaap_AssetsHeldForSaleNotPartOfDisposalGroupCurrentOther_lbl"/>
<loc xlink:type="locator" xlink:label="auid_UnlabeledAbstract43" xlink:href="auid-20231231.xsd#auid_UnlabeledAbstract43"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_UnlabeledAbstract43_lbl" xml:lang="en-US"> </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract43" xlink:to="auid_UnlabeledAbstract43_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_AssetsHeldForSaleNotPartOfDisposalGroup" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetsHeldForSaleNotPartOfDisposalGroup"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AssetsHeldForSaleNotPartOfDisposalGroup_lbl" xml:lang="en-US"> Total assets held for sale </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsHeldForSaleNotPartOfDisposalGroup" xlink:to="us-gaap_AssetsHeldForSaleNotPartOfDisposalGroup_lbl"/>
<loc xlink:type="locator" xlink:label="auid_UnlabeledAbstract44" xlink:href="auid-20231231.xsd#auid_UnlabeledAbstract44"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_UnlabeledAbstract44_lbl" xml:lang="en-US"> </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract44" xlink:to="auid_UnlabeledAbstract44_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_OtherLiabilitiesCurrentAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherLiabilitiesCurrentAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OtherLiabilitiesCurrentAbstract_lbl" xml:lang="en-US"> Current Liabilities: </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherLiabilitiesCurrentAbstract" xlink:to="us-gaap_OtherLiabilitiesCurrentAbstract_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndAccruedLiabilities" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndAccruedLiabilities"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndAccruedLiabilities_lbl" xml:lang="en-US"> Accounts payable and accrued expenses </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndAccruedLiabilities" xlink:to="us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndAccruedLiabilities_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation_lbl" xml:lang="en-US"> Total liabilities held for sale </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation" xlink:to="us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation_lbl"/>
<loc xlink:type="locator" xlink:label="srt_ScheduleOfCondensedCashFlowStatementTableTextBlock" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ScheduleOfCondensedCashFlowStatementTableTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="srt_ScheduleOfCondensedCashFlowStatementTableTextBlock_lbl" xml:lang="en-US"> Schedule of Cash Flow Activity Related to Discontinued Operations </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_ScheduleOfCondensedCashFlowStatementTableTextBlock" xlink:to="srt_ScheduleOfCondensedCashFlowStatementTableTextBlock_lbl"/>
<loc xlink:type="locator" xlink:label="auid_CashFlowsFromOperatingActivitiesAbstract" xlink:href="auid-20231231.xsd#auid_CashFlowsFromOperatingActivitiesAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_CashFlowsFromOperatingActivitiesAbstract_lbl" xml:lang="en-US"> CASH FLOWS FROM OPERATING ACTIVITIES: </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_CashFlowsFromOperatingActivitiesAbstract" xlink:to="auid_CashFlowsFromOperatingActivitiesAbstract_lbl"/>
<loc xlink:type="locator" xlink:label="auid_AdjustmentsToReconcileNetLossWithCashFlowsFromOperationsAbstract" xlink:href="auid-20231231.xsd#auid_AdjustmentsToReconcileNetLossWithCashFlowsFromOperationsAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_AdjustmentsToReconcileNetLossWithCashFlowsFromOperationsAbstract_lbl" xml:lang="en-US"> Adjustments to reconcile net loss with cash flows from operations: </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_AdjustmentsToReconcileNetLossWithCashFlowsFromOperationsAbstract" xlink:to="auid_AdjustmentsToReconcileNetLossWithCashFlowsFromOperationsAbstract_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DepreciationAndAmortizationDiscontinuedOperations" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DepreciationAndAmortizationDiscontinuedOperations"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DepreciationAndAmortizationDiscontinuedOperations_lbl" xml:lang="en-US"> Depreciation and amortization expense </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DepreciationAndAmortizationDiscontinuedOperations" xlink:to="us-gaap_DepreciationAndAmortizationDiscontinuedOperations_lbl"/>
<loc xlink:type="locator" xlink:label="auid_DisposalGroupIncludingDiscontinuedOperationImpairmentOfIntangibleAssets" xlink:href="auid-20231231.xsd#auid_DisposalGroupIncludingDiscontinuedOperationImpairmentOfIntangibleAssets"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_DisposalGroupIncludingDiscontinuedOperationImpairmentOfIntangibleAssets_lbl" xml:lang="en-US"> Impairment of intangible assets </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_DisposalGroupIncludingDiscontinuedOperationImpairmentOfIntangibleAssets" xlink:to="auid_DisposalGroupIncludingDiscontinuedOperationImpairmentOfIntangibleAssets_lbl"/>
<loc xlink:type="locator" xlink:label="auid_ChangesInOperatingAssetsAndLiabilitiesAbstract0" xlink:href="auid-20231231.xsd#auid_ChangesInOperatingAssetsAndLiabilitiesAbstract0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_ChangesInOperatingAssetsAndLiabilitiesAbstract0_lbl" xml:lang="en-US"> Changes in operating assets and liabilities: </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_ChangesInOperatingAssetsAndLiabilitiesAbstract0" xlink:to="auid_ChangesInOperatingAssetsAndLiabilitiesAbstract0_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_NetCashProvidedByUsedInDiscontinuedOperations" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetCashProvidedByUsedInDiscontinuedOperations"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_NetCashProvidedByUsedInDiscontinuedOperations_lbl" xml:lang="en-US"> Net cash flows from discontinued operations </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NetCashProvidedByUsedInDiscontinuedOperations" xlink:to="us-gaap_NetCashProvidedByUsedInDiscontinuedOperations_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommitmentsAndContingenciesDisclosureTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_lbl" xml:lang="en-US"> COMMITMENTS AND CONTINGENCIES </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" xlink:to="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_SegmentReportingDisclosureTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SegmentReportingDisclosureTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_SegmentReportingDisclosureTextBlock_lbl" xml:lang="en-US"> SEGMENT INFORMATION </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SegmentReportingDisclosureTextBlock" xlink:to="us-gaap_SegmentReportingDisclosureTextBlock_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_lbl" xml:lang="en-US"> Less: Accumulated Depreciation </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:to="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_AmortizationOfIntangibleAssets" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AmortizationOfIntangibleAssets"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_AmortizationOfIntangibleAssets_lbl" xml:lang="en-US"> Amortization </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AmortizationOfIntangibleAssets" xlink:to="us-gaap_AmortizationOfIntangibleAssets_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_lbl" xml:lang="en-US"> Accumulated amortization </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization" xlink:to="us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_lbl" xml:lang="en-US"> Unamortized debt discount expense </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet" xlink:to="us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_lbl0" xml:lang="en-US"> Net of debt issuance costs and discount </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet" xlink:to="us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_lbl1" xml:lang="en-US"> Net of debt issuance costs and discount (in Dollars) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet" xlink:to="us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_lbl1"/>
<loc xlink:type="locator" xlink:label="us-gaap_UnamortizedDebtIssuanceExpense" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_UnamortizedDebtIssuanceExpense"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_UnamortizedDebtIssuanceExpense_lbl" xml:lang="en-US"> Unamortized debt issuance expense </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_UnamortizedDebtIssuanceExpense" xlink:to="us-gaap_UnamortizedDebtIssuanceExpense_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercised" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercised"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercised_lbl" xml:lang="en-US"> Number of share, Exercised/Cancelled </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercised" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercised_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod_lbl" xml:lang="en-US"> Number of Shares, Forfeited/cancelled </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod_lbl"/>
<loc xlink:type="locator" xlink:label="auid_EffectiveIncomeTaxRateLossOnDebtExtinguishment" xlink:href="auid-20231231.xsd#auid_EffectiveIncomeTaxRateLossOnDebtExtinguishment"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="auid_EffectiveIncomeTaxRateLossOnDebtExtinguishment_lbl" xml:lang="en-US"> Loss on debt extinguishment </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_EffectiveIncomeTaxRateLossOnDebtExtinguishment" xlink:to="auid_EffectiveIncomeTaxRateLossOnDebtExtinguishment_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DeferredTaxAssetsValuationAllowance" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsValuationAllowance"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_DeferredTaxAssetsValuationAllowance_lbl" xml:lang="en-US"> Valuation allowance </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxAssetsValuationAllowance" xlink:to="us-gaap_DeferredTaxAssetsValuationAllowance_lbl"/>
<loc xlink:type="locator" xlink:label="auid_DisposalGroupIncludingDiscontinuedOperationLessValueAddedTax" xlink:href="auid-20231231.xsd#auid_DisposalGroupIncludingDiscontinuedOperationLessValueAddedTax"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="auid_DisposalGroupIncludingDiscontinuedOperationLessValueAddedTax_lbl" xml:lang="en-US"> Less: Value added tax </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_DisposalGroupIncludingDiscontinuedOperationLessValueAddedTax" xlink:to="auid_DisposalGroupIncludingDiscontinuedOperationLessValueAddedTax_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationInterestExpense" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationInterestExpense"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationInterestExpense_lbl" xml:lang="en-US"> Interest expense, net </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DisposalGroupIncludingDiscontinuedOperationInterestExpense" xlink:to="us-gaap_DisposalGroupIncludingDiscontinuedOperationInterestExpense_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation_lbl" xml:lang="en-US"> Income tax expense </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation" xlink:to="us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation_lbl"/>
<loc xlink:type="locator" xlink:label="auid_DisposalGroupIncludingDiscontinuedOperationIncreaseDecreaseInAccountsReceivable" xlink:href="auid-20231231.xsd#auid_DisposalGroupIncludingDiscontinuedOperationIncreaseDecreaseInAccountsReceivable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="auid_DisposalGroupIncludingDiscontinuedOperationIncreaseDecreaseInAccountsReceivable_lbl" xml:lang="en-US"> Accounts receivable </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_DisposalGroupIncludingDiscontinuedOperationIncreaseDecreaseInAccountsReceivable" xlink:to="auid_DisposalGroupIncludingDiscontinuedOperationIncreaseDecreaseInAccountsReceivable_lbl"/>
<loc xlink:type="locator" xlink:label="auid_DisposalGroupIncludingDiscontinuedOperationIncreaseDecreaseInOtherCurrentAssets" xlink:href="auid-20231231.xsd#auid_DisposalGroupIncludingDiscontinuedOperationIncreaseDecreaseInOtherCurrentAssets"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="auid_DisposalGroupIncludingDiscontinuedOperationIncreaseDecreaseInOtherCurrentAssets_lbl" xml:lang="en-US"> Other current assets </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_DisposalGroupIncludingDiscontinuedOperationIncreaseDecreaseInOtherCurrentAssets" xlink:to="auid_DisposalGroupIncludingDiscontinuedOperationIncreaseDecreaseInOtherCurrentAssets_lbl"/>
<loc xlink:type="locator" xlink:label="auid_DisposalGroupIncludingDiscontinuedOperationIncreaseDecreaseInInventory" xlink:href="auid-20231231.xsd#auid_DisposalGroupIncludingDiscontinuedOperationIncreaseDecreaseInInventory"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="auid_DisposalGroupIncludingDiscontinuedOperationIncreaseDecreaseInInventory_lbl" xml:lang="en-US"> Inventory </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_DisposalGroupIncludingDiscontinuedOperationIncreaseDecreaseInInventory" xlink:to="auid_DisposalGroupIncludingDiscontinuedOperationIncreaseDecreaseInInventory_lbl"/>
<loc xlink:type="locator" xlink:label="auid_DisposalGroupIncludingDiscontinuedOperationIncreaseDecreaseInAccountsPayableAndAccruedLiabilities" xlink:href="auid-20231231.xsd#auid_DisposalGroupIncludingDiscontinuedOperationIncreaseDecreaseInAccountsPayableAndAccruedLiabilities"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="auid_DisposalGroupIncludingDiscontinuedOperationIncreaseDecreaseInAccountsPayableAndAccruedLiabilities_lbl" xml:lang="en-US"> Accounts payable and accrued expenses </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_DisposalGroupIncludingDiscontinuedOperationIncreaseDecreaseInAccountsPayableAndAccruedLiabilities" xlink:to="auid_DisposalGroupIncludingDiscontinuedOperationIncreaseDecreaseInAccountsPayableAndAccruedLiabilities_lbl"/>
<loc xlink:type="locator" xlink:label="auid_DisposalGroupIncludingDiscontinuedOperationIncreaseDecreaseInDeferredRevenue" xlink:href="auid-20231231.xsd#auid_DisposalGroupIncludingDiscontinuedOperationIncreaseDecreaseInDeferredRevenue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:label="auid_DisposalGroupIncludingDiscontinuedOperationIncreaseDecreaseInDeferredRevenue_lbl" xml:lang="en-US"> Deferred revenue </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_DisposalGroupIncludingDiscontinuedOperationIncreaseDecreaseInDeferredRevenue" xlink:to="auid_DisposalGroupIncludingDiscontinuedOperationIncreaseDecreaseInDeferredRevenue_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ConvertibleNotesPayableMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConvertibleNotesPayableMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ConvertibleNotesPayableMember_lbl" xml:lang="en-US"> Convertible Notes Payable [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConvertibleNotesPayableMember" xlink:to="us-gaap_ConvertibleNotesPayableMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_ConvertibleNotesPayableMember_lbl0" xml:lang="en-US"> Convertible Note [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConvertibleNotesPayableMember" xlink:to="us-gaap_ConvertibleNotesPayableMember_lbl0"/>
<loc xlink:type="locator" xlink:label="us-gaap_WarrantMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_WarrantMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_WarrantMember_lbl" xml:lang="en-US"> Warrant [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_WarrantMember" xlink:to="us-gaap_WarrantMember_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_EmployeeStockOptionMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EmployeeStockOptionMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_EmployeeStockOptionMember_lbl" xml:lang="en-US"> Stock options [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EmployeeStockOptionMember" xlink:to="us-gaap_EmployeeStockOptionMember_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ComputerEquipmentMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ComputerEquipmentMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ComputerEquipmentMember_lbl" xml:lang="en-US"> Computer Equipment [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ComputerEquipmentMember" xlink:to="us-gaap_ComputerEquipmentMember_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_FurnitureAndFixturesMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FurnitureAndFixturesMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_FurnitureAndFixturesMember_lbl" xml:lang="en-US"> Furniture and Equipment [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FurnitureAndFixturesMember" xlink:to="us-gaap_FurnitureAndFixturesMember_lbl"/>
<loc xlink:type="locator" xlink:label="auid_AcquiredAndDevelopedSoftwareMember" xlink:href="auid-20231231.xsd#auid_AcquiredAndDevelopedSoftwareMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_AcquiredAndDevelopedSoftwareMember_lbl" xml:lang="en-US"> Acquired and Developed Software [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_AcquiredAndDevelopedSoftwareMember" xlink:to="auid_AcquiredAndDevelopedSoftwareMember_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_PatentsMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PatentsMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PatentsMember_lbl" xml:lang="en-US"> Patents [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PatentsMember" xlink:to="us-gaap_PatentsMember_lbl"/>
<loc xlink:type="locator" xlink:label="srt_MinimumMember" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MinimumMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="srt_MinimumMember_lbl" xml:lang="en-US"> Minimum [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_MinimumMember" xlink:to="srt_MinimumMember_lbl"/>
<loc xlink:type="locator" xlink:label="srt_MaximumMember" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MaximumMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="srt_MaximumMember_lbl" xml:lang="en-US"> Maximum [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_MaximumMember" xlink:to="srt_MaximumMember_lbl"/>
<loc xlink:type="locator" xlink:label="auid_TwoPointSixFourToFivePointZeroZeroMember" xlink:href="auid-20231231.xsd#auid_TwoPointSixFourToFivePointZeroZeroMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_TwoPointSixFourToFivePointZeroZeroMember_lbl" xml:lang="en-US"> $2.64 – $5.00 [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_TwoPointSixFourToFivePointZeroZeroMember" xlink:to="auid_TwoPointSixFourToFivePointZeroZeroMember_lbl"/>
<loc xlink:type="locator" xlink:label="auid_FivePointZeroOneToTenPointZeroZeroMember" xlink:href="auid-20231231.xsd#auid_FivePointZeroOneToTenPointZeroZeroMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_FivePointZeroOneToTenPointZeroZeroMember_lbl" xml:lang="en-US"> $5.01 – $10.00 [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_FivePointZeroOneToTenPointZeroZeroMember" xlink:to="auid_FivePointZeroOneToTenPointZeroZeroMember_lbl"/>
<loc xlink:type="locator" xlink:label="auid_TenPointZeroOneToFifteenPointZeroZeroMember" xlink:href="auid-20231231.xsd#auid_TenPointZeroOneToFifteenPointZeroZeroMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_TenPointZeroOneToFifteenPointZeroZeroMember_lbl" xml:lang="en-US"> $10.01 – $15.00 [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_TenPointZeroOneToFifteenPointZeroZeroMember" xlink:to="auid_TenPointZeroOneToFifteenPointZeroZeroMember_lbl"/>
<loc xlink:type="locator" xlink:label="auid_FifteenPointZeroOneToTwentyPointZeroZeroMember" xlink:href="auid-20231231.xsd#auid_FifteenPointZeroOneToTwentyPointZeroZeroMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_FifteenPointZeroOneToTwentyPointZeroZeroMember_lbl" xml:lang="en-US"> $15.01 – $20.00 [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_FifteenPointZeroOneToTwentyPointZeroZeroMember" xlink:to="auid_FifteenPointZeroOneToTwentyPointZeroZeroMember_lbl"/>
<loc xlink:type="locator" xlink:label="auid_TwentyPointZeroOneToOneHundredTwentyOnePointTwoEightMember" xlink:href="auid-20231231.xsd#auid_TwentyPointZeroOneToOneHundredTwentyOnePointTwoEightMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_TwentyPointZeroOneToOneHundredTwentyOnePointTwoEightMember_lbl" xml:lang="en-US"> $20.01 – $121.28 [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_TwentyPointZeroOneToOneHundredTwentyOnePointTwoEightMember" xlink:to="auid_TwentyPointZeroOneToOneHundredTwentyOnePointTwoEightMember_lbl"/>
<loc xlink:type="locator" xlink:label="auid_MultiPayMember" xlink:href="auid-20231231.xsd#auid_MultiPayMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_MultiPayMember_lbl" xml:lang="en-US"> MultiPay [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_MultiPayMember" xlink:to="auid_MultiPayMember_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_SegmentDiscontinuedOperationsMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SegmentDiscontinuedOperationsMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_SegmentDiscontinuedOperationsMember_lbl" xml:lang="en-US"> Discontinued Operations [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SegmentDiscontinuedOperationsMember" xlink:to="us-gaap_SegmentDiscontinuedOperationsMember_lbl"/>
<loc xlink:type="locator" xlink:label="auid_CardsPlusMember" xlink:href="auid-20231231.xsd#auid_CardsPlusMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_CardsPlusMember_lbl" xml:lang="en-US"> Cards Plus [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_CardsPlusMember" xlink:to="auid_CardsPlusMember_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ShortTermDebtTypeAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShortTermDebtTypeAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShortTermDebtTypeAxis_lbl" xml:lang="en-US"> Short-Term Debt, Type [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShortTermDebtTypeAxis" xlink:to="us-gaap_ShortTermDebtTypeAxis_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_SubsequentEventTypeAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SubsequentEventTypeAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SubsequentEventTypeAxis_lbl" xml:lang="en-US"> Subsequent Event Type [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SubsequentEventTypeAxis" xlink:to="us-gaap_SubsequentEventTypeAxis_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_BalanceSheetLocationAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BalanceSheetLocationAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_BalanceSheetLocationAxis_lbl" xml:lang="en-US"> Balance Sheet Location [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_BalanceSheetLocationAxis" xlink:to="us-gaap_BalanceSheetLocationAxis_lbl"/>
<loc xlink:type="locator" xlink:label="srt_MajorCustomersAxis" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MajorCustomersAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_MajorCustomersAxis_lbl" xml:lang="en-US"> Customer [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_MajorCustomersAxis" xlink:to="srt_MajorCustomersAxis_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ConcentrationRiskByBenchmarkAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ConcentrationRiskByBenchmarkAxis_lbl" xml:lang="en-US"> Concentration Risk Benchmark [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConcentrationRiskByBenchmarkAxis" xlink:to="us-gaap_ConcentrationRiskByBenchmarkAxis_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ConcentrationRiskByTypeAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskByTypeAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ConcentrationRiskByTypeAxis_lbl" xml:lang="en-US"> Concentration Risk Type [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConcentrationRiskByTypeAxis" xlink:to="us-gaap_ConcentrationRiskByTypeAxis_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_LineOfCreditFacilityAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LineOfCreditFacilityAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LineOfCreditFacilityAxis_lbl" xml:lang="en-US"> Lender Name [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LineOfCreditFacilityAxis" xlink:to="us-gaap_LineOfCreditFacilityAxis_lbl"/>
<loc xlink:type="locator" xlink:label="srt_TitleOfIndividualAxis" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_TitleOfIndividualAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_TitleOfIndividualAxis_lbl" xml:lang="en-US"> Title of Individual [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_TitleOfIndividualAxis" xlink:to="srt_TitleOfIndividualAxis_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DebtInstrumentAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentAxis_lbl" xml:lang="en-US"> Debt Instrument [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentAxis" xlink:to="us-gaap_DebtInstrumentAxis_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_StatementClassOfStockAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementClassOfStockAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StatementClassOfStockAxis_lbl" xml:lang="en-US"> Class of Stock [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementClassOfStockAxis" xlink:to="us-gaap_StatementClassOfStockAxis_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_lbl" xml:lang="en-US"> Related Party, Type [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:to="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyTransactionAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RelatedPartyTransactionAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RelatedPartyTransactionAxis_lbl" xml:lang="en-US"> Related Party Transaction [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RelatedPartyTransactionAxis" xlink:to="us-gaap_RelatedPartyTransactionAxis_lbl"/>
<loc xlink:type="locator" xlink:label="srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_lbl" xml:lang="en-US"> Investment, Name [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:to="srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_CreditFacilityAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CreditFacilityAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CreditFacilityAxis_lbl" xml:lang="en-US"> Credit Facility [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CreditFacilityAxis" xlink:to="us-gaap_CreditFacilityAxis_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsByTypeOfDeferredCompensationAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsByTypeOfDeferredCompensationAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsByTypeOfDeferredCompensationAxis_lbl" xml:lang="en-US"> Deferred Bonus and Profit Sharing Arrangements, Individual Contracts, Type of Deferred Compensation [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsByTypeOfDeferredCompensationAxis" xlink:to="us-gaap_DeferredCompensationArrangementWithIndividualExcludingShareBasedPaymentsAndPostretirementBenefitsByTypeOfDeferredCompensationAxis_lbl"/>
<loc xlink:type="locator" xlink:label="srt_StatementScenarioAxis" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_StatementScenarioAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_StatementScenarioAxis_lbl" xml:lang="en-US"> Scenario [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_StatementScenarioAxis" xlink:to="srt_StatementScenarioAxis_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_SubsidiarySaleOfStockAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SubsidiarySaleOfStockAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SubsidiarySaleOfStockAxis_lbl" xml:lang="en-US"> Sale of Stock [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SubsidiarySaleOfStockAxis" xlink:to="us-gaap_SubsidiarySaleOfStockAxis_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_PlanNameAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PlanNameAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PlanNameAxis_lbl" xml:lang="en-US"> Plan Name [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PlanNameAxis" xlink:to="us-gaap_PlanNameAxis_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_lbl" xml:lang="en-US"> Disposal Group Name [Axis] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis" xlink:to="us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_SaleOfStockConsiderationReceivedOnTransaction" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SaleOfStockConsiderationReceivedOnTransaction"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_SaleOfStockConsiderationReceivedOnTransaction_lbl" xml:lang="en-US"> Sale consideration </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SaleOfStockConsiderationReceivedOnTransaction" xlink:to="us-gaap_SaleOfStockConsiderationReceivedOnTransaction_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_GoodwillForeignCurrencyTranslationGainLoss" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GoodwillForeignCurrencyTranslationGainLoss"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_GoodwillForeignCurrencyTranslationGainLoss_lbl" xml:lang="en-US"> Foreign currency translation gain </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GoodwillForeignCurrencyTranslationGainLoss" xlink:to="us-gaap_GoodwillForeignCurrencyTranslationGainLoss_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_SaleLeasebackTransactionCumulativeGainRecognized1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SaleLeasebackTransactionCumulativeGainRecognized1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_SaleLeasebackTransactionCumulativeGainRecognized1_lbl" xml:lang="en-US"> Recognized gain transaction </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SaleLeasebackTransactionCumulativeGainRecognized1" xlink:to="us-gaap_SaleLeasebackTransactionCumulativeGainRecognized1_lbl"/>
<loc xlink:type="locator" xlink:label="auid_NonCash" xlink:href="auid-20231231.xsd#auid_NonCash"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_NonCash_lbl" xml:lang="en-US"> Non-cash </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_NonCash" xlink:to="auid_NonCash_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_SharesIssuedPricePerShare" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SharesIssuedPricePerShare"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_SharesIssuedPricePerShare_lbl" xml:lang="en-US"> Share price per share (in Dollars per share) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharesIssuedPricePerShare" xlink:to="us-gaap_SharesIssuedPricePerShare_lbl"/>
<loc xlink:type="locator" xlink:label="auid_AggregateGrossProceeds" xlink:href="auid-20231231.xsd#auid_AggregateGrossProceeds"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_AggregateGrossProceeds_lbl" xml:lang="en-US"> Aggregate gross proceeds </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_AggregateGrossProceeds" xlink:to="auid_AggregateGrossProceeds_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DeferredOfferingCosts" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredOfferingCosts"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DeferredOfferingCosts_lbl" xml:lang="en-US"> Net of offering costs </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredOfferingCosts" xlink:to="us-gaap_DeferredOfferingCosts_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_DeferredOfferingCosts_lbl0" xml:lang="en-US"> Net offering cost (in Dollars) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredOfferingCosts" xlink:to="us-gaap_DeferredOfferingCosts_lbl0"/>
<loc xlink:type="locator" xlink:label="us-gaap_InvestmentOwnedBalancePrincipalAmount" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InvestmentOwnedBalancePrincipalAmount"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_InvestmentOwnedBalancePrincipalAmount_lbl" xml:lang="en-US"> Gross principal amount </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InvestmentOwnedBalancePrincipalAmount" xlink:to="us-gaap_InvestmentOwnedBalancePrincipalAmount_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DeferredFinanceCostsNet" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredFinanceCostsNet"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DeferredFinanceCostsNet_lbl" xml:lang="en-US"> Net of debt issuance costs </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredFinanceCostsNet" xlink:to="us-gaap_DeferredFinanceCostsNet_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_DeferredFinanceCostsNet_lbl0" xml:lang="en-US"> Issuance costs </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredFinanceCostsNet" xlink:to="us-gaap_DeferredFinanceCostsNet_lbl0"/>
<loc xlink:type="locator" xlink:label="us-gaap_EquityMethodInvestmentAggregateCost" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityMethodInvestmentAggregateCost"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_EquityMethodInvestmentAggregateCost_lbl" xml:lang="en-US"> Aggregate amount </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EquityMethodInvestmentAggregateCost" xlink:to="us-gaap_EquityMethodInvestmentAggregateCost_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_SharesIssued" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SharesIssued"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_SharesIssued_lbl" xml:lang="en-US"> Shares (in Shares) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharesIssued" xlink:to="us-gaap_SharesIssued_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_SharesIssued_lbl0" xml:lang="en-US"> Shares of common stock (in Shares) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharesIssued" xlink:to="us-gaap_SharesIssued_lbl0"/>
<loc xlink:type="locator" xlink:label="us-gaap_ContractWithCustomerLiability" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ContractWithCustomerLiability"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ContractWithCustomerLiability_lbl" xml:lang="en-US"> Deferred revenue contract liabilities </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ContractWithCustomerLiability" xlink:to="us-gaap_ContractWithCustomerLiability_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_RevenueRemainingPerformanceObligation" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueRemainingPerformanceObligation"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_RevenueRemainingPerformanceObligation_lbl" xml:lang="en-US"> Remaining performance obligation </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RevenueRemainingPerformanceObligation" xlink:to="us-gaap_RevenueRemainingPerformanceObligation_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DeferredRevenue" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredRevenue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DeferredRevenue_lbl" xml:lang="en-US"> Deferred revenue </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredRevenue" xlink:to="us-gaap_DeferredRevenue_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_OtherNoncashExpense" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherNoncashExpense"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OtherNoncashExpense_lbl" xml:lang="en-US"> Other non-cancelable contracted amounts </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherNoncashExpense" xlink:to="us-gaap_OtherNoncashExpense_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_InvestmentOwnedBalanceContracts" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InvestmentOwnedBalanceContracts"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_InvestmentOwnedBalanceContracts_lbl" xml:lang="en-US"> Balance based primarily </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InvestmentOwnedBalanceContracts" xlink:to="us-gaap_InvestmentOwnedBalanceContracts_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_AccountsReceivableSale" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccountsReceivableSale"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AccountsReceivableSale_lbl" xml:lang="en-US"> Sale of received </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountsReceivableSale" xlink:to="us-gaap_AccountsReceivableSale_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_CashFDICInsuredAmount" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashFDICInsuredAmount"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CashFDICInsuredAmount_lbl" xml:lang="en-US"> Federal deposit insurance corporation </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashFDICInsuredAmount" xlink:to="us-gaap_CashFDICInsuredAmount_lbl"/>
<loc xlink:type="locator" xlink:label="auid_ExcessInsuredAmountsFederalDepositoryCorporation" xlink:href="auid-20231231.xsd#auid_ExcessInsuredAmountsFederalDepositoryCorporation"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_ExcessInsuredAmountsFederalDepositoryCorporation_lbl" xml:lang="en-US"> Excess insured amounts federal depository corporation </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_ExcessInsuredAmountsFederalDepositoryCorporation" xlink:to="auid_ExcessInsuredAmountsFederalDepositoryCorporation_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_CashAndDueFromBanks" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashAndDueFromBanks"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CashAndDueFromBanks_lbl" xml:lang="en-US"> Cash maintained </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashAndDueFromBanks" xlink:to="us-gaap_CashAndDueFromBanks_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ConcentrationRiskPercentage1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskPercentage1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ConcentrationRiskPercentage1_lbl" xml:lang="en-US"> Risk percentage </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConcentrationRiskPercentage1" xlink:to="us-gaap_ConcentrationRiskPercentage1_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_LeaseCost" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LeaseCost"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LeaseCost_lbl" xml:lang="en-US"> Lease cost </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LeaseCost" xlink:to="us-gaap_LeaseCost_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_LeaseCost_lbl0" xml:lang="en-US"> One-year lease </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LeaseCost" xlink:to="us-gaap_LeaseCost_lbl0"/>
<loc xlink:type="locator" xlink:label="us-gaap_MarketingAndAdvertisingExpense" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_MarketingAndAdvertisingExpense"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_MarketingAndAdvertisingExpense_lbl" xml:lang="en-US"> Digital marketing expense </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_MarketingAndAdvertisingExpense" xlink:to="us-gaap_MarketingAndAdvertisingExpense_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_Depreciation" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Depreciation"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_Depreciation_lbl" xml:lang="en-US"> Depreciation expense </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Depreciation" xlink:to="us-gaap_Depreciation_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_UnsecuredDebt" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_UnsecuredDebt"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_UnsecuredDebt_lbl" xml:lang="en-US"> Unsecured debt </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_UnsecuredDebt" xlink:to="us-gaap_UnsecuredDebt_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_UnsecuredDebt_lbl0" xml:lang="en-US"> Unsecured amount </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_UnsecuredDebt" xlink:to="us-gaap_UnsecuredDebt_lbl0"/>
<loc xlink:type="locator" xlink:label="us-gaap_ConversionOfStockSharesIssued1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConversionOfStockSharesIssued1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ConversionOfStockSharesIssued1_lbl" xml:lang="en-US"> Shares of facility Commitment Fee (in Shares) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConversionOfStockSharesIssued1" xlink:to="us-gaap_ConversionOfStockSharesIssued1_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_ConversionOfStockSharesIssued1_lbl0" xml:lang="en-US"> Conversion shares for commitment fee (in Shares) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConversionOfStockSharesIssued1" xlink:to="us-gaap_ConversionOfStockSharesIssued1_lbl0"/>
<loc xlink:type="locator" xlink:label="us-gaap_LineOfCreditFacilityPeriodicPayment" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LineOfCreditFacilityPeriodicPayment"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LineOfCreditFacilityPeriodicPayment_lbl" xml:lang="en-US"> Initial credit facility </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LineOfCreditFacilityPeriodicPayment" xlink:to="us-gaap_LineOfCreditFacilityPeriodicPayment_lbl"/>
<loc xlink:type="locator" xlink:label="auid_AggregateAmount" xlink:href="auid-20231231.xsd#auid_AggregateAmount"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_AggregateAmount_lbl" xml:lang="en-US"> Aggregate amount </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_AggregateAmount" xlink:to="auid_AggregateAmount_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_LineOfCreditFacilityAnnualPrincipalPayment" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LineOfCreditFacilityAnnualPrincipalPayment"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LineOfCreditFacilityAnnualPrincipalPayment_lbl" xml:lang="en-US"> Principal Amount </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LineOfCreditFacilityAnnualPrincipalPayment" xlink:to="us-gaap_LineOfCreditFacilityAnnualPrincipalPayment_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_LineOfCreditFacilityAnnualPrincipalPayment_lbl0" xml:lang="en-US"> Principal amount </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LineOfCreditFacilityAnnualPrincipalPayment" xlink:to="us-gaap_LineOfCreditFacilityAnnualPrincipalPayment_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:label="us-gaap_LineOfCreditFacilityAnnualPrincipalPayment_lbl1" xml:lang="en-US"> Principal balance (in Dollars) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LineOfCreditFacilityAnnualPrincipalPayment" xlink:to="us-gaap_LineOfCreditFacilityAnnualPrincipalPayment_lbl1"/>
<loc xlink:type="locator" xlink:label="us-gaap_DebtInstrumentIncreaseAccruedInterest" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentIncreaseAccruedInterest"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DebtInstrumentIncreaseAccruedInterest_lbl" xml:lang="en-US"> Unpaid interest </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentIncreaseAccruedInterest" xlink:to="us-gaap_DebtInstrumentIncreaseAccruedInterest_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_DebtInstrumentIncreaseAccruedInterest_lbl0" xml:lang="en-US"> Accrued interest </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentIncreaseAccruedInterest" xlink:to="us-gaap_DebtInstrumentIncreaseAccruedInterest_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:label="us-gaap_DebtInstrumentIncreaseAccruedInterest_lbl1" xml:lang="en-US"> Accrued interest (in Dollars) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentIncreaseAccruedInterest" xlink:to="us-gaap_DebtInstrumentIncreaseAccruedInterest_lbl1"/>
<loc xlink:type="locator" xlink:label="us-gaap_DebtInstrumentPeriodicPaymentPrincipal" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentPeriodicPaymentPrincipal"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DebtInstrumentPeriodicPaymentPrincipal_lbl" xml:lang="en-US"> Aggregate initial principal amount </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentPeriodicPaymentPrincipal" xlink:to="us-gaap_DebtInstrumentPeriodicPaymentPrincipal_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_DebtInstrumentPeriodicPaymentPrincipal_lbl0" xml:lang="en-US"> Principal amount (in Dollars) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentPeriodicPaymentPrincipal" xlink:to="us-gaap_DebtInstrumentPeriodicPaymentPrincipal_lbl0"/>
<loc xlink:type="locator" xlink:label="us-gaap_DebtInstrumentConvertibleConversionPrice1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentConvertibleConversionPrice1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DebtInstrumentConvertibleConversionPrice1_lbl" xml:lang="en-US"> Conversion price per share (in Dollars per share) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentConvertibleConversionPrice1" xlink:to="us-gaap_DebtInstrumentConvertibleConversionPrice1_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ProceedsFromLoanOriginations1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromLoanOriginations1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ProceedsFromLoanOriginations1_lbl" xml:lang="en-US"> Aggregate cash origination fee </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromLoanOriginations1" xlink:to="us-gaap_ProceedsFromLoanOriginations1_lbl"/>
<loc xlink:type="locator" xlink:label="auid_IssuedOfCommonStockOriginationFee" xlink:href="auid-20231231.xsd#auid_IssuedOfCommonStockOriginationFee"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_IssuedOfCommonStockOriginationFee_lbl" xml:lang="en-US"> Issued of common stock origination fee (in Shares) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_IssuedOfCommonStockOriginationFee" xlink:to="auid_IssuedOfCommonStockOriginationFee_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_LineOfCreditFacilityInterestRateDuringPeriod" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LineOfCreditFacilityInterestRateDuringPeriod"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LineOfCreditFacilityInterestRateDuringPeriod_lbl" xml:lang="en-US"> Percentage of convertible note interest rate </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LineOfCreditFacilityInterestRateDuringPeriod" xlink:to="us-gaap_LineOfCreditFacilityInterestRateDuringPeriod_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DebtInstrumentMaturityDate" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentMaturityDate"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DebtInstrumentMaturityDate_lbl" xml:lang="en-US"> Convertible notes maturity date </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentMaturityDate" xlink:to="us-gaap_DebtInstrumentMaturityDate_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_lbl" xml:lang="en-US"> Shares of common stock (in Shares) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction" xlink:to="us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_lbl0" xml:lang="en-US"> Issuance of common stock (in Shares) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction" xlink:to="us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:label="us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_lbl1" xml:lang="en-US"> Sale of stock </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction" xlink:to="us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_lbl1"/>
<loc xlink:type="locator" xlink:label="us-gaap_InducedConversionOfConvertibleDebtExpense" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InducedConversionOfConvertibleDebtExpense"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_InducedConversionOfConvertibleDebtExpense_lbl" xml:lang="en-US"> Conversion of convertible notes </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InducedConversionOfConvertibleDebtExpense" xlink:to="us-gaap_InducedConversionOfConvertibleDebtExpense_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_InducedConversionOfConvertibleDebtExpense_lbl0" xml:lang="en-US"> Conversion of convertible notes (in Dollars) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InducedConversionOfConvertibleDebtExpense" xlink:to="us-gaap_InducedConversionOfConvertibleDebtExpense_lbl0"/>
<loc xlink:type="locator" xlink:label="srt_FinancingReceivableNonaccrualToOutstandingPercent" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_FinancingReceivableNonaccrualToOutstandingPercent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="srt_FinancingReceivableNonaccrualToOutstandingPercent_lbl" xml:lang="en-US"> Outstanding principal amount percentage </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_FinancingReceivableNonaccrualToOutstandingPercent" xlink:to="srt_FinancingReceivableNonaccrualToOutstandingPercent_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DebtInstrumentConvertibleIfConvertedValueInExcessOfPrincipal" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentConvertibleIfConvertedValueInExcessOfPrincipal"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DebtInstrumentConvertibleIfConvertedValueInExcessOfPrincipal_lbl" xml:lang="en-US"> Principal amount </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentConvertibleIfConvertedValueInExcessOfPrincipal" xlink:to="us-gaap_DebtInstrumentConvertibleIfConvertedValueInExcessOfPrincipal_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_InterestExpenseDebt" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InterestExpenseDebt"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_InterestExpenseDebt_lbl" xml:lang="en-US"> Interest expense </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InterestExpenseDebt" xlink:to="us-gaap_InterestExpenseDebt_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_lbl" xml:lang="en-US"> Common stock warrants (in Shares) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights" xlink:to="us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_lbl"/>
<loc xlink:type="locator" xlink:label="auid_EstimatedGrantDateFairValue" xlink:href="auid-20231231.xsd#auid_EstimatedGrantDateFairValue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_EstimatedGrantDateFairValue_lbl" xml:lang="en-US"> Estimated grant date fair value </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_EstimatedGrantDateFairValue" xlink:to="auid_EstimatedGrantDateFairValue_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DebtInstrumentAnnualPrincipalPayment" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentAnnualPrincipalPayment"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DebtInstrumentAnnualPrincipalPayment_lbl" xml:lang="en-US"> Outstanding amount </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentAnnualPrincipalPayment" xlink:to="us-gaap_DebtInstrumentAnnualPrincipalPayment_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DebtInstrumentInterestRateStatedPercentage_lbl" xml:lang="en-US"> Interest per annum </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:to="us-gaap_DebtInstrumentInterestRateStatedPercentage_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ConvertibleNotesPayable" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConvertibleNotesPayable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ConvertibleNotesPayable_lbl" xml:lang="en-US"> Convertible notes payable </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConvertibleNotesPayable" xlink:to="us-gaap_ConvertibleNotesPayable_lbl"/>
<loc xlink:type="locator" xlink:label="auid_SharesOfCommonStockExchanged" xlink:href="auid-20231231.xsd#auid_SharesOfCommonStockExchanged"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_SharesOfCommonStockExchanged_lbl" xml:lang="en-US"> Shares of common stock (in Shares) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_SharesOfCommonStockExchanged" xlink:to="auid_SharesOfCommonStockExchanged_lbl"/>
<loc xlink:type="locator" xlink:label="auid_PercentageOfOutstandingShares" xlink:href="auid-20231231.xsd#auid_PercentageOfOutstandingShares"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_PercentageOfOutstandingShares_lbl" xml:lang="en-US"> Percentage of outstanding shares </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_PercentageOfOutstandingShares" xlink:to="auid_PercentageOfOutstandingShares_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_SaleOfStockConsiderationReceivedPerTransaction" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SaleOfStockConsiderationReceivedPerTransaction"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_SaleOfStockConsiderationReceivedPerTransaction_lbl" xml:lang="en-US"> Consideration received per transaction </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SaleOfStockConsiderationReceivedPerTransaction" xlink:to="us-gaap_SaleOfStockConsiderationReceivedPerTransaction_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_EquityMethodInvestmentOwnershipPercentage" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityMethodInvestmentOwnershipPercentage"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_EquityMethodInvestmentOwnershipPercentage_lbl" xml:lang="en-US"> Percentage of common stock </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EquityMethodInvestmentOwnershipPercentage" xlink:to="us-gaap_EquityMethodInvestmentOwnershipPercentage_lbl"/>
<loc xlink:type="locator" xlink:label="auid_AmendedAmount" xlink:href="auid-20231231.xsd#auid_AmendedAmount"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_AmendedAmount_lbl" xml:lang="en-US"> Amendment amount </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_AmendedAmount" xlink:to="auid_AmendedAmount_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_LineOfCreditFacilityIncreaseAccruedInterest" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LineOfCreditFacilityIncreaseAccruedInterest"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LineOfCreditFacilityIncreaseAccruedInterest_lbl" xml:lang="en-US"> Accrued and unpaid </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LineOfCreditFacilityIncreaseAccruedInterest" xlink:to="us-gaap_LineOfCreditFacilityIncreaseAccruedInterest_lbl"/>
<loc xlink:type="locator" xlink:label="auid_AccruedSeveranceLiability" xlink:href="auid-20231231.xsd#auid_AccruedSeveranceLiability"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_AccruedSeveranceLiability_lbl" xml:lang="en-US"> Deferred severance </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_AccruedSeveranceLiability" xlink:to="auid_AccruedSeveranceLiability_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_StockOptionExercisePriceIncrease" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockOptionExercisePriceIncrease"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StockOptionExercisePriceIncrease_lbl" xml:lang="en-US"> Exercise price (in Dollars per share) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockOptionExercisePriceIncrease" xlink:to="us-gaap_StockOptionExercisePriceIncrease_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_CompensationExpenseExcludingCostOfGoodAndServiceSold" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CompensationExpenseExcludingCostOfGoodAndServiceSold"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CompensationExpenseExcludingCostOfGoodAndServiceSold_lbl" xml:lang="en-US"> Officer expense </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CompensationExpenseExcludingCostOfGoodAndServiceSold" xlink:to="us-gaap_CompensationExpenseExcludingCostOfGoodAndServiceSold_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_lbl" xml:lang="en-US"> Option grant (in Shares) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_lbl0" xml:lang="en-US"> Granted options shares </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_lbl0"/>
<loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_lbl" xml:lang="en-US"> Vesting Period </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ManagementAndServiceFeesBaseRate" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ManagementAndServiceFeesBaseRate"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ManagementAndServiceFeesBaseRate_lbl" xml:lang="en-US"> Percentage of base salary </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ManagementAndServiceFeesBaseRate" xlink:to="us-gaap_ManagementAndServiceFeesBaseRate_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice_lbl" xml:lang="en-US"> Exercise price (in Dollars per share) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DebtInstrumentInterestRateDuringPeriod" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentInterestRateDuringPeriod"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DebtInstrumentInterestRateDuringPeriod_lbl" xml:lang="en-US"> Percentage of base salary </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentInterestRateDuringPeriod" xlink:to="us-gaap_DebtInstrumentInterestRateDuringPeriod_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_SalariesAndWages" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SalariesAndWages"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_SalariesAndWages_lbl" xml:lang="en-US"> Annual salary increased amount </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SalariesAndWages" xlink:to="us-gaap_SalariesAndWages_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber_lbl" xml:lang="en-US"> Options vested and unvested (in Shares) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_StockIssuedDuringPeriodValueIssuedForServices" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodValueIssuedForServices"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StockIssuedDuringPeriodValueIssuedForServices_lbl" xml:lang="en-US"> Consideration of the services </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodValueIssuedForServices" xlink:to="us-gaap_StockIssuedDuringPeriodValueIssuedForServices_lbl"/>
<loc xlink:type="locator" xlink:label="auid_StockIssuedDuringPeriodValueIssuedForServicesTotalPaid" xlink:href="auid-20231231.xsd#auid_StockIssuedDuringPeriodValueIssuedForServicesTotalPaid"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_StockIssuedDuringPeriodValueIssuedForServicesTotalPaid_lbl" xml:lang="en-US"> Paid total amount </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_StockIssuedDuringPeriodValueIssuedForServicesTotalPaid" xlink:to="auid_StockIssuedDuringPeriodValueIssuedForServicesTotalPaid_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_AccountsPayableCurrentAndNoncurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccountsPayableCurrentAndNoncurrent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AccountsPayableCurrentAndNoncurrent_lbl" xml:lang="en-US"> Accounts payable </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountsPayableCurrentAndNoncurrent" xlink:to="us-gaap_AccountsPayableCurrentAndNoncurrent_lbl"/>
<loc xlink:type="locator" xlink:label="auid_UnsecuredLineOfCreditFacility" xlink:href="auid-20231231.xsd#auid_UnsecuredLineOfCreditFacility"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_UnsecuredLineOfCreditFacility_lbl" xml:lang="en-US"> Unsecured line of credit facility </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnsecuredLineOfCreditFacility" xlink:to="auid_UnsecuredLineOfCreditFacility_lbl"/>
<loc xlink:type="locator" xlink:label="auid_AnnualBaseSalaryAmount" xlink:href="auid-20231231.xsd#auid_AnnualBaseSalaryAmount"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_AnnualBaseSalaryAmount_lbl" xml:lang="en-US"> Annual base salary amount </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_AnnualBaseSalaryAmount" xlink:to="auid_AnnualBaseSalaryAmount_lbl"/>
<loc xlink:type="locator" xlink:label="auid_PerfomanceBasedBonusAmount" xlink:href="auid-20231231.xsd#auid_PerfomanceBasedBonusAmount"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_PerfomanceBasedBonusAmount_lbl" xml:lang="en-US"> Bonus amount </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_PerfomanceBasedBonusAmount" xlink:to="auid_PerfomanceBasedBonusAmount_lbl"/>
<loc xlink:type="locator" xlink:label="auid_PerformanceContributionsAggregateAmount" xlink:href="auid-20231231.xsd#auid_PerformanceContributionsAggregateAmount"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_PerformanceContributionsAggregateAmount_lbl" xml:lang="en-US"> Performance contributions aggregate amount </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_PerformanceContributionsAggregateAmount" xlink:to="auid_PerformanceContributionsAggregateAmount_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_InsuranceRecoveries" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InsuranceRecoveries"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_InsuranceRecoveries_lbl" xml:lang="en-US"> Medical coverage cost </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_InsuranceRecoveries" xlink:to="us-gaap_InsuranceRecoveries_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_PreferredStockSharesAuthorized" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockSharesAuthorized"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PreferredStockSharesAuthorized_lbl" xml:lang="en-US"> Preferred stock, shares authorized </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockSharesAuthorized" xlink:to="us-gaap_PreferredStockSharesAuthorized_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_PreferredStockSharesIssued" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockSharesIssued"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PreferredStockSharesIssued_lbl" xml:lang="en-US"> Preferred stock, shares issued </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PreferredStockSharesIssued" xlink:to="us-gaap_PreferredStockSharesIssued_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_StockIssuedDuringPeriodSharesReverseStockSplits" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodSharesReverseStockSplits"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_StockIssuedDuringPeriodSharesReverseStockSplits_lbl" xml:lang="en-US"> Common stock issued and outstanding </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesReverseStockSplits" xlink:to="us-gaap_StockIssuedDuringPeriodSharesReverseStockSplits_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ExcessStockSharesIssued" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ExcessStockSharesIssued"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ExcessStockSharesIssued_lbl" xml:lang="en-US"> Stock options shares </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ExcessStockSharesIssued" xlink:to="us-gaap_ExcessStockSharesIssued_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_SaleOfStockPricePerShare" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SaleOfStockPricePerShare"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_SaleOfStockPricePerShare_lbl" xml:lang="en-US"> Stock price per share (in Dollars per share) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SaleOfStockPricePerShare" xlink:to="us-gaap_SaleOfStockPricePerShare_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_TemporaryEquityParOrStatedValuePerShare" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TemporaryEquityParOrStatedValuePerShare"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_TemporaryEquityParOrStatedValuePerShare_lbl" xml:lang="en-US"> Fair market value (in Dollars per share) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TemporaryEquityParOrStatedValuePerShare" xlink:to="us-gaap_TemporaryEquityParOrStatedValuePerShare_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DebtInstrumentPeriodicPaymentInterest" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentPeriodicPaymentInterest"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DebtInstrumentPeriodicPaymentInterest_lbl" xml:lang="en-US"> Interest rate (in Dollars) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentPeriodicPaymentInterest" xlink:to="us-gaap_DebtInstrumentPeriodicPaymentInterest_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ConversionOfStockSharesConverted1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConversionOfStockSharesConverted1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ConversionOfStockSharesConverted1_lbl" xml:lang="en-US"> Conversion right share </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConversionOfStockSharesConverted1" xlink:to="us-gaap_ConversionOfStockSharesConverted1_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ClassOfWarrantOrRightOutstanding" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfWarrantOrRightOutstanding"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ClassOfWarrantOrRightOutstanding_lbl" xml:lang="en-US"> Common stock, warrant </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassOfWarrantOrRightOutstanding" xlink:to="us-gaap_ClassOfWarrantOrRightOutstanding_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_WarrantsAndRightsOutstandingTerm" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_WarrantsAndRightsOutstandingTerm"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_WarrantsAndRightsOutstandingTerm_lbl" xml:lang="en-US"> Maturity term of warrant </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_WarrantsAndRightsOutstandingTerm" xlink:to="us-gaap_WarrantsAndRightsOutstandingTerm_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_lbl" xml:lang="en-US"> Warrant exercise price (in Dollars per share) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" xlink:to="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit_lbl" xml:lang="en-US"> Minimum Exercise price (in Dollars per share) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit" xlink:to="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit_lbl" xml:lang="en-US"> Maximum exercise price (in Dollars per share) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit" xlink:to="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares_lbl" xml:lang="en-US"> Options vest </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares" xlink:to="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares_lbl"/>
<loc xlink:type="locator" xlink:label="auid_StockBasedCompensationCommonStockValue" xlink:href="auid-20231231.xsd#auid_StockBasedCompensationCommonStockValue"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_StockBasedCompensationCommonStockValue_lbl" xml:lang="en-US"> Stock based compensation common stock value (in Dollars) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_StockBasedCompensationCommonStockValue" xlink:to="auid_StockBasedCompensationCommonStockValue_lbl"/>
<loc xlink:type="locator" xlink:label="auid_NumberOfNonemployeeDirectors" xlink:href="auid-20231231.xsd#auid_NumberOfNonemployeeDirectors"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_NumberOfNonemployeeDirectors_lbl" xml:lang="en-US"> Number of non-employee directors </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_NumberOfNonemployeeDirectors" xlink:to="auid_NumberOfNonemployeeDirectors_lbl"/>
<loc xlink:type="locator" xlink:label="auid_PerformanceBasedAndMarketBasedOptions" xlink:href="auid-20231231.xsd#auid_PerformanceBasedAndMarketBasedOptions"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_PerformanceBasedAndMarketBasedOptions_lbl" xml:lang="en-US"> Performance-based and market-based options </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_PerformanceBasedAndMarketBasedOptions" xlink:to="auid_PerformanceBasedAndMarketBasedOptions_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions_lbl" xml:lang="en-US"> Unrecognized stock option based compensation expense (in Dollars) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions" xlink:to="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_AllocatedShareBasedCompensationExpense" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AllocatedShareBasedCompensationExpense"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AllocatedShareBasedCompensationExpense_lbl" xml:lang="en-US"> Stock option based compensation expense (in Dollars) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AllocatedShareBasedCompensationExpense" xlink:to="us-gaap_AllocatedShareBasedCompensationExpense_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsDomestic" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsDomestic"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsDomestic_lbl" xml:lang="en-US"> Federal net operating loss carry forward </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsDomestic" xlink:to="us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsDomestic_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal_lbl" xml:lang="en-US"> State net operating loss carry forwards </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal" xlink:to="us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_OperatingLossCarryforwards" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingLossCarryforwards"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OperatingLossCarryforwards_lbl" xml:lang="en-US"> Operating loss carry forwards </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLossCarryforwards" xlink:to="us-gaap_OperatingLossCarryforwards_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_OtherIndefiniteLivedIntangibleAssets" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherIndefiniteLivedIntangibleAssets"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OtherIndefiniteLivedIntangibleAssets_lbl" xml:lang="en-US"> Indefinite life </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherIndefiniteLivedIntangibleAssets" xlink:to="us-gaap_OtherIndefiniteLivedIntangibleAssets_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DeferredTaxAssetsNet" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsNet"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DeferredTaxAssetsNet_lbl" xml:lang="en-US"> Valuation allowance </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxAssetsNet" xlink:to="us-gaap_DeferredTaxAssetsNet_lbl"/>
<loc xlink:type="locator" xlink:label="auid_SaleOfCardPlus" xlink:href="auid-20231231.xsd#auid_SaleOfCardPlus"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_SaleOfCardPlus_lbl" xml:lang="en-US"> Sale of card plus </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_SaleOfCardPlus" xlink:to="auid_SaleOfCardPlus_lbl"/>
<loc xlink:type="locator" xlink:label="auid_CardPlusAmountReceived" xlink:href="auid-20231231.xsd#auid_CardPlusAmountReceived"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_CardPlusAmountReceived_lbl" xml:lang="en-US"> Card plus amount received </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_CardPlusAmountReceived" xlink:to="auid_CardPlusAmountReceived_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_LossOnContractTermination" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LossOnContractTermination"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LossOnContractTermination_lbl" xml:lang="en-US"> Recognized loss </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LossOnContractTermination" xlink:to="us-gaap_LossOnContractTermination_lbl"/>
<loc xlink:type="locator" xlink:label="auid_DisposalGroupNotDiscontinuedOperationRecognizedGain" xlink:href="auid-20231231.xsd#auid_DisposalGroupNotDiscontinuedOperationRecognizedGain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_DisposalGroupNotDiscontinuedOperationRecognizedGain_lbl" xml:lang="en-US"> Recognized a gain </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_DisposalGroupNotDiscontinuedOperationRecognizedGain" xlink:to="auid_DisposalGroupNotDiscontinuedOperationRecognizedGain_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_PaymentsForRent" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsForRent"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PaymentsForRent_lbl" xml:lang="en-US"> Monthly rent </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PaymentsForRent" xlink:to="us-gaap_PaymentsForRent_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_LossContingencyAccrualPayments" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LossContingencyAccrualPayments"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LossContingencyAccrualPayments_lbl" xml:lang="en-US"> Agreement amount </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LossContingencyAccrualPayments" xlink:to="us-gaap_LossContingencyAccrualPayments_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_EmployeeStockOwnershipPlanESOPPlanDescription" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EmployeeStockOwnershipPlanESOPPlanDescription"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_EmployeeStockOwnershipPlanESOPPlanDescription_lbl" xml:lang="en-US"> Employees contribution, description </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EmployeeStockOwnershipPlanESOPPlanDescription" xlink:to="us-gaap_EmployeeStockOwnershipPlanESOPPlanDescription_lbl"/>
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<loc xlink:type="locator" xlink:label="us-gaap_SaleLeasebackTransactionMonthlyRentalPayments" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SaleLeasebackTransactionMonthlyRentalPayments"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_SaleLeasebackTransactionMonthlyRentalPayments_lbl" xml:lang="en-US"> Monthly rental payments </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SaleLeasebackTransactionMonthlyRentalPayments" xlink:to="us-gaap_SaleLeasebackTransactionMonthlyRentalPayments_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_SaleLeasebackTransactionLeaseTerm" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SaleLeasebackTransactionLeaseTerm"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_SaleLeasebackTransactionLeaseTerm_lbl" xml:lang="en-US"> Lease agreement terms </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SaleLeasebackTransactionLeaseTerm" xlink:to="us-gaap_SaleLeasebackTransactionLeaseTerm_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_OperatingLeasesRentExpenseNet" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingLeasesRentExpenseNet"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OperatingLeasesRentExpenseNet_lbl" xml:lang="en-US"> Rent expense included in general and administrative </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeasesRentExpenseNet" xlink:to="us-gaap_OperatingLeasesRentExpenseNet_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_OperatingLeasesRentExpenseSubleaseRentals1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingLeasesRentExpenseSubleaseRentals1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_OperatingLeasesRentExpenseSubleaseRentals1_lbl" xml:lang="en-US"> Rent expense included in loss from discontinued operations </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeasesRentExpenseSubleaseRentals1" xlink:to="us-gaap_OperatingLeasesRentExpenseSubleaseRentals1_lbl"/>
<loc xlink:type="locator" xlink:label="auid_GoingConcernPolicyTextBlock" xlink:href="auid-20231231.xsd#auid_GoingConcernPolicyTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_GoingConcernPolicyTextBlock_lbl" xml:lang="en-US"> Going Concern </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_GoingConcernPolicyTextBlock" xlink:to="auid_GoingConcernPolicyTextBlock_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_SubsequentEventsPolicyPolicyTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SubsequentEventsPolicyPolicyTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_SubsequentEventsPolicyPolicyTextBlock_lbl" xml:lang="en-US"> Subsequent Events </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SubsequentEventsPolicyPolicyTextBlock" xlink:to="us-gaap_SubsequentEventsPolicyPolicyTextBlock_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ConsolidationPolicyTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConsolidationPolicyTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ConsolidationPolicyTextBlock_lbl" xml:lang="en-US"> Basis of Consolidation </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConsolidationPolicyTextBlock" xlink:to="us-gaap_ConsolidationPolicyTextBlock_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_UseOfEstimates" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_UseOfEstimates"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_UseOfEstimates_lbl" xml:lang="en-US"> Use of Estimates </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_UseOfEstimates" xlink:to="us-gaap_UseOfEstimates_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_RevenueRecognitionLeases" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueRecognitionLeases"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_RevenueRecognitionLeases_lbl" xml:lang="en-US"> Revenue Recognition </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RevenueRecognitionLeases" xlink:to="us-gaap_RevenueRecognitionLeases_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_TradeAndOtherAccountsReceivablePolicy" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TradeAndOtherAccountsReceivablePolicy"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_TradeAndOtherAccountsReceivablePolicy_lbl" xml:lang="en-US"> Accounts Receivable </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_TradeAndOtherAccountsReceivablePolicy" xlink:to="us-gaap_TradeAndOtherAccountsReceivablePolicy_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ConcentrationRiskCreditRisk" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskCreditRisk"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ConcentrationRiskCreditRisk_lbl" xml:lang="en-US"> Concentration of Credit Risk and Major Customers </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConcentrationRiskCreditRisk" xlink:to="us-gaap_ConcentrationRiskCreditRisk_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_IncomeTaxPolicyTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeTaxPolicyTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_IncomeTaxPolicyTextBlock_lbl" xml:lang="en-US"> Income Taxes </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeTaxPolicyTextBlock" xlink:to="us-gaap_IncomeTaxPolicyTextBlock_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_LesseeLeasesPolicyTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LesseeLeasesPolicyTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_LesseeLeasesPolicyTextBlock_lbl" xml:lang="en-US"> Leases </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LesseeLeasesPolicyTextBlock" xlink:to="us-gaap_LesseeLeasesPolicyTextBlock_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_PropertyPlantAndEquipmentPolicyTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentPolicyTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_PropertyPlantAndEquipmentPolicyTextBlock_lbl" xml:lang="en-US"> Property and Equipment, net </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentPolicyTextBlock" xlink:to="us-gaap_PropertyPlantAndEquipmentPolicyTextBlock_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_IntangibleAssetsFiniteLivedPolicy" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IntangibleAssetsFiniteLivedPolicy"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_IntangibleAssetsFiniteLivedPolicy_lbl" xml:lang="en-US"> Intangible Assets </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IntangibleAssetsFiniteLivedPolicy" xlink:to="us-gaap_IntangibleAssetsFiniteLivedPolicy_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_GoodwillAndIntangibleAssetsGoodwillPolicy" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GoodwillAndIntangibleAssetsGoodwillPolicy"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_GoodwillAndIntangibleAssetsGoodwillPolicy_lbl" xml:lang="en-US"> Goodwill </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GoodwillAndIntangibleAssetsGoodwillPolicy" xlink:to="us-gaap_GoodwillAndIntangibleAssetsGoodwillPolicy_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy_lbl" xml:lang="en-US"> Stock-based compensation </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy" xlink:to="us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ResearchAndDevelopmentExpensePolicy" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ResearchAndDevelopmentExpensePolicy"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ResearchAndDevelopmentExpensePolicy_lbl" xml:lang="en-US"> Research and Development Costs </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ResearchAndDevelopmentExpensePolicy" xlink:to="us-gaap_ResearchAndDevelopmentExpensePolicy_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_AdvertisingCostsPolicyTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AdvertisingCostsPolicyTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AdvertisingCostsPolicyTextBlock_lbl" xml:lang="en-US"> Advertising Expenses </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AdvertisingCostsPolicyTextBlock" xlink:to="us-gaap_AdvertisingCostsPolicyTextBlock_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_EarningsPerSharePolicyTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EarningsPerSharePolicyTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_EarningsPerSharePolicyTextBlock_lbl" xml:lang="en-US"> Net Loss per Common Share </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EarningsPerSharePolicyTextBlock" xlink:to="us-gaap_EarningsPerSharePolicyTextBlock_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock_lbl" xml:lang="en-US"> Foreign Currency Translation </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock" xlink:to="us-gaap_ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock_lbl"/>
<loc xlink:type="locator" xlink:label="auid_RegisteredPublicOfferingMember" xlink:href="auid-20231231.xsd#auid_RegisteredPublicOfferingMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_RegisteredPublicOfferingMember_lbl" xml:lang="en-US"> Registered Public Offering [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_RegisteredPublicOfferingMember" xlink:to="auid_RegisteredPublicOfferingMember_lbl"/>
<loc xlink:type="locator" xlink:label="auid_OutstandingBalanceMember" xlink:href="auid-20231231.xsd#auid_OutstandingBalanceMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_OutstandingBalanceMember_lbl" xml:lang="en-US"> Outstanding Balance [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_OutstandingBalanceMember" xlink:to="auid_OutstandingBalanceMember_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_SubsequentEventMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SubsequentEventMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_SubsequentEventMember_lbl" xml:lang="en-US"> Subsequent Event [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SubsequentEventMember" xlink:to="us-gaap_SubsequentEventMember_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_AccountsReceivableMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccountsReceivableMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_AccountsReceivableMember_lbl" xml:lang="en-US"> Accounts Receivable [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountsReceivableMember" xlink:to="us-gaap_AccountsReceivableMember_lbl"/>
<loc xlink:type="locator" xlink:label="auid_InternationalCustomersMember" xlink:href="auid-20231231.xsd#auid_InternationalCustomersMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_InternationalCustomersMember_lbl" xml:lang="en-US"> International customers [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_InternationalCustomersMember" xlink:to="auid_InternationalCustomersMember_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_SalesRevenueNetMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SalesRevenueNetMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_SalesRevenueNetMember_lbl" xml:lang="en-US"> Revenue Benchmark [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SalesRevenueNetMember" xlink:to="us-gaap_SalesRevenueNetMember_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_CustomerConcentrationRiskMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CustomerConcentrationRiskMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_CustomerConcentrationRiskMember_lbl" xml:lang="en-US"> Customer Concentration Risk [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CustomerConcentrationRiskMember" xlink:to="us-gaap_CustomerConcentrationRiskMember_lbl"/>
<loc xlink:type="locator" xlink:label="auid_CustomersTwoMember" xlink:href="auid-20231231.xsd#auid_CustomersTwoMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_CustomersTwoMember_lbl" xml:lang="en-US"> Customers Two [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_CustomersTwoMember" xlink:to="auid_CustomersTwoMember_lbl"/>
<loc xlink:type="locator" xlink:label="auid_CustomerThreeMember" xlink:href="auid-20231231.xsd#auid_CustomerThreeMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_CustomerThreeMember_lbl" xml:lang="en-US"> Customer Three [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_CustomerThreeMember" xlink:to="auid_CustomerThreeMember_lbl"/>
<loc xlink:type="locator" xlink:label="auid_LegacyCustomerMember" xlink:href="auid-20231231.xsd#auid_LegacyCustomerMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_LegacyCustomerMember_lbl" xml:lang="en-US"> Legacy Customer [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_LegacyCustomerMember" xlink:to="auid_LegacyCustomerMember_lbl"/>
<loc xlink:type="locator" xlink:label="auid_OriginalFacilityAgreementMember" xlink:href="auid-20231231.xsd#auid_OriginalFacilityAgreementMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_OriginalFacilityAgreementMember_lbl" xml:lang="en-US"> Original Facility Agreement [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_OriginalFacilityAgreementMember" xlink:to="auid_OriginalFacilityAgreementMember_lbl"/>
<loc xlink:type="locator" xlink:label="auid_ARFacilityAgreementMember" xlink:href="auid-20231231.xsd#auid_ARFacilityAgreementMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_ARFacilityAgreementMember_lbl" xml:lang="en-US"> Original Facility Agreement [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_ARFacilityAgreementMember" xlink:to="auid_ARFacilityAgreementMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="auid_ARFacilityAgreementMember_lbl0" xml:lang="en-US"> A&R Facility Agreement [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_ARFacilityAgreementMember" xlink:to="auid_ARFacilityAgreementMember_lbl0"/>
<loc xlink:type="locator" xlink:label="auid_GarchikMember" xlink:href="auid-20231231.xsd#auid_GarchikMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_GarchikMember_lbl" xml:lang="en-US"> Garchik [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_GarchikMember" xlink:to="auid_GarchikMember_lbl"/>
<loc xlink:type="locator" xlink:label="auid_ConvertibleNotesMember" xlink:href="auid-20231231.xsd#auid_ConvertibleNotesMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_ConvertibleNotesMember_lbl" xml:lang="en-US"> Convertible Notes [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_ConvertibleNotesMember" xlink:to="auid_ConvertibleNotesMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="auid_ConvertibleNotesMember_lbl0" xml:lang="en-US"> Convertible Notes[Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_ConvertibleNotesMember" xlink:to="auid_ConvertibleNotesMember_lbl0"/>
<loc xlink:type="locator" xlink:label="auid_HoldersMember" xlink:href="auid-20231231.xsd#auid_HoldersMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_HoldersMember_lbl" xml:lang="en-US"> Holders [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_HoldersMember" xlink:to="auid_HoldersMember_lbl"/>
<loc xlink:type="locator" xlink:label="srt_OfficerMember" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_OfficerMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="srt_OfficerMember_lbl" xml:lang="en-US"> Officer [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_OfficerMember" xlink:to="srt_OfficerMember_lbl"/>
<loc xlink:type="locator" xlink:label="auid_SternTrustMember" xlink:href="auid-20231231.xsd#auid_SternTrustMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_SternTrustMember_lbl" xml:lang="en-US"> Stern Trust [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_SternTrustMember" xlink:to="auid_SternTrustMember_lbl"/>
<loc xlink:type="locator" xlink:label="srt_DirectorMember" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_DirectorMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="srt_DirectorMember_lbl" xml:lang="en-US"> Board of Directors [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_DirectorMember" xlink:to="srt_DirectorMember_lbl"/>
<loc xlink:type="locator" xlink:label="auid_MrStephenJGarchikMember" xlink:href="auid-20231231.xsd#auid_MrStephenJGarchikMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_MrStephenJGarchikMember_lbl" xml:lang="en-US"> Mr. Stephen J. Garchik [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_MrStephenJGarchikMember" xlink:to="auid_MrStephenJGarchikMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="auid_MrStephenJGarchikMember_lbl0" xml:lang="en-US"> Stephen Garchik [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_MrStephenJGarchikMember" xlink:to="auid_MrStephenJGarchikMember_lbl0"/>
<loc xlink:type="locator" xlink:label="auid_MrGarchikMember" xlink:href="auid-20231231.xsd#auid_MrGarchikMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_MrGarchikMember_lbl" xml:lang="en-US"> Mr. Garchik [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_MrGarchikMember" xlink:to="auid_MrGarchikMember_lbl"/>
<loc xlink:type="locator" xlink:label="srt_BoardOfDirectorsChairmanMember" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_BoardOfDirectorsChairmanMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="srt_BoardOfDirectorsChairmanMember_lbl" xml:lang="en-US"> Board of Directors Chairman [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_BoardOfDirectorsChairmanMember" xlink:to="srt_BoardOfDirectorsChairmanMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="srt_BoardOfDirectorsChairmanMember_lbl0" xml:lang="en-US"> Directors [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_BoardOfDirectorsChairmanMember" xlink:to="srt_BoardOfDirectorsChairmanMember_lbl0"/>
<loc xlink:type="locator" xlink:label="srt_ChiefExecutiveOfficerMember" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ChiefExecutiveOfficerMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="srt_ChiefExecutiveOfficerMember_lbl" xml:lang="en-US"> CEO [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_ChiefExecutiveOfficerMember" xlink:to="srt_ChiefExecutiveOfficerMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="srt_ChiefExecutiveOfficerMember_lbl0" xml:lang="en-US"> Chief Executive Officer [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_ChiefExecutiveOfficerMember" xlink:to="srt_ChiefExecutiveOfficerMember_lbl0"/>
<loc xlink:type="locator" xlink:label="auid_MichaelThompsonMember" xlink:href="auid-20231231.xsd#auid_MichaelThompsonMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_MichaelThompsonMember_lbl" xml:lang="en-US"> Michael Thompson [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_MichaelThompsonMember" xlink:to="auid_MichaelThompsonMember_lbl"/>
<loc xlink:type="locator" xlink:label="auid_IssuanceOfCommonStockMember" xlink:href="auid-20231231.xsd#auid_IssuanceOfCommonStockMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_IssuanceOfCommonStockMember_lbl" xml:lang="en-US"> Issuance of Common Stock [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_IssuanceOfCommonStockMember" xlink:to="auid_IssuanceOfCommonStockMember_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_RevolvingCreditFacilityMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevolvingCreditFacilityMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_RevolvingCreditFacilityMember_lbl" xml:lang="en-US"> Revolving Credit Facility [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RevolvingCreditFacilityMember" xlink:to="us-gaap_RevolvingCreditFacilityMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="us-gaap_RevolvingCreditFacilityMember_lbl0" xml:lang="en-US"> Credit Facility [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RevolvingCreditFacilityMember" xlink:to="us-gaap_RevolvingCreditFacilityMember_lbl0"/>
<loc xlink:type="locator" xlink:label="auid_MrThimotMember" xlink:href="auid-20231231.xsd#auid_MrThimotMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_MrThimotMember_lbl" xml:lang="en-US"> Mr Thimot [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_MrThimotMember" xlink:to="auid_MrThimotMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="auid_MrThimotMember_lbl0" xml:lang="en-US"> Mr.Thimot [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_MrThimotMember" xlink:to="auid_MrThimotMember_lbl0"/>
<loc xlink:type="locator" xlink:label="auid_MrDaguroMember" xlink:href="auid-20231231.xsd#auid_MrDaguroMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_MrDaguroMember_lbl" xml:lang="en-US"> 306,875 </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_MrDaguroMember" xlink:to="auid_MrDaguroMember_lbl"/>
<loc xlink:type="locator" xlink:label="auid_InitialAnnualSalaryMember" xlink:href="auid-20231231.xsd#auid_InitialAnnualSalaryMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_InitialAnnualSalaryMember_lbl" xml:lang="en-US"> Initial Annual Salary [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_InitialAnnualSalaryMember" xlink:to="auid_InitialAnnualSalaryMember_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DeferredBonusMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredBonusMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_DeferredBonusMember_lbl" xml:lang="en-US"> Bonus [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredBonusMember" xlink:to="us-gaap_DeferredBonusMember_lbl"/>
<loc xlink:type="locator" xlink:label="srt_ScenarioForecastMember" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ScenarioForecastMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="srt_ScenarioForecastMember_lbl" xml:lang="en-US"> Forecast [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_ScenarioForecastMember" xlink:to="srt_ScenarioForecastMember_lbl"/>
<loc xlink:type="locator" xlink:label="auid_AchievingIncrementsMember" xlink:href="auid-20231231.xsd#auid_AchievingIncrementsMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_AchievingIncrementsMember_lbl" xml:lang="en-US"> Achieving Increments [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_AchievingIncrementsMember" xlink:to="auid_AchievingIncrementsMember_lbl"/>
<loc xlink:type="locator" xlink:label="auid_MrSzokeMember" xlink:href="auid-20231231.xsd#auid_MrSzokeMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_MrSzokeMember_lbl" xml:lang="en-US"> Mr Szoke [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_MrSzokeMember" xlink:to="auid_MrSzokeMember_lbl"/>
<loc xlink:type="locator" xlink:label="auid_MsPhamMember" xlink:href="auid-20231231.xsd#auid_MsPhamMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_MsPhamMember_lbl" xml:lang="en-US"> Ms. Pham [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_MsPhamMember" xlink:to="auid_MsPhamMember_lbl"/>
<loc xlink:type="locator" xlink:label="auid_MrSellittoMember" xlink:href="auid-20231231.xsd#auid_MrSellittoMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_MrSellittoMember_lbl" xml:lang="en-US"> Mr Szoke [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_MrSellittoMember" xlink:to="auid_MrSellittoMember_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:label="auid_MrSellittoMember_lbl0" xml:lang="en-US"> Mr. Sellitto [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_MrSellittoMember" xlink:to="auid_MrSellittoMember_lbl0"/>
<loc xlink:type="locator" xlink:label="auid_MessrsJosephTrelinMichaelKoehnemanMember" xlink:href="auid-20231231.xsd#auid_MessrsJosephTrelinMichaelKoehnemanMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_MessrsJosephTrelinMichaelKoehnemanMember_lbl" xml:lang="en-US"> Messrs. Joseph Trelin, Michael Koehneman [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_MessrsJosephTrelinMichaelKoehnemanMember" xlink:to="auid_MessrsJosephTrelinMichaelKoehnemanMember_lbl"/>
<loc xlink:type="locator" xlink:label="auid_MsJacquelineWhiteMember" xlink:href="auid-20231231.xsd#auid_MsJacquelineWhiteMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_MsJacquelineWhiteMember_lbl" xml:lang="en-US"> Ms. Jacqueline White [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_MsJacquelineWhiteMember" xlink:to="auid_MsJacquelineWhiteMember_lbl"/>
<loc xlink:type="locator" xlink:label="auid_TPGMember" xlink:href="auid-20231231.xsd#auid_TPGMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_TPGMember_lbl" xml:lang="en-US"> TPG [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_TPGMember" xlink:to="auid_TPGMember_lbl"/>
<loc xlink:type="locator" xlink:label="srt_ExecutiveOfficerMember" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ExecutiveOfficerMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="srt_ExecutiveOfficerMember_lbl" xml:lang="en-US"> Executive Officers [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_ExecutiveOfficerMember" xlink:to="srt_ExecutiveOfficerMember_lbl"/>
<loc xlink:type="locator" xlink:label="srt_ChiefFinancialOfficerMember" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ChiefFinancialOfficerMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="srt_ChiefFinancialOfficerMember_lbl" xml:lang="en-US"> Chief Financial Officer [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_ChiefFinancialOfficerMember" xlink:to="srt_ChiefFinancialOfficerMember_lbl"/>
<loc xlink:type="locator" xlink:label="auid_MrTrelinMember" xlink:href="auid-20231231.xsd#auid_MrTrelinMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_MrTrelinMember_lbl" xml:lang="en-US"> Mr Trelin [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_MrTrelinMember" xlink:to="auid_MrTrelinMember_lbl"/>
<loc xlink:type="locator" xlink:label="auid_TwoZeroTwoThreeCommonStockTransactionsMember" xlink:href="auid-20231231.xsd#auid_TwoZeroTwoThreeCommonStockTransactionsMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_TwoZeroTwoThreeCommonStockTransactionsMember_lbl" xml:lang="en-US"> Two Zero Two Three Common Stock Transactions [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_TwoZeroTwoThreeCommonStockTransactionsMember" xlink:to="auid_TwoZeroTwoThreeCommonStockTransactionsMember_lbl"/>
<loc xlink:type="locator" xlink:label="auid_TwoThousandTwentyTwoCommonStockTransactionsMember" xlink:href="auid-20231231.xsd#auid_TwoThousandTwentyTwoCommonStockTransactionsMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_TwoThousandTwentyTwoCommonStockTransactionsMember_lbl" xml:lang="en-US"> 2022 Common Stock Transactions [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_TwoThousandTwentyTwoCommonStockTransactionsMember" xlink:to="auid_TwoThousandTwentyTwoCommonStockTransactionsMember_lbl"/>
<loc xlink:type="locator" xlink:label="auid_OutsideInvestorMember" xlink:href="auid-20231231.xsd#auid_OutsideInvestorMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_OutsideInvestorMember_lbl" xml:lang="en-US"> Outside Investor [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_OutsideInvestorMember" xlink:to="auid_OutsideInvestorMember_lbl"/>
<loc xlink:type="locator" xlink:label="auid_PIPEInvestorsMember" xlink:href="auid-20231231.xsd#auid_PIPEInvestorsMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_PIPEInvestorsMember_lbl" xml:lang="en-US"> PIPE Investors [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_PIPEInvestorsMember" xlink:to="auid_PIPEInvestorsMember_lbl"/>
<loc xlink:type="locator" xlink:label="auid_MadisonGlobalPartnersLLCMember" xlink:href="auid-20231231.xsd#auid_MadisonGlobalPartnersLLCMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_MadisonGlobalPartnersLLCMember_lbl" xml:lang="en-US"> Madison Global Partners LLC [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_MadisonGlobalPartnersLLCMember" xlink:to="auid_MadisonGlobalPartnersLLCMember_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_NoteWarrantMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NoteWarrantMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_NoteWarrantMember_lbl" xml:lang="en-US"> Warrants [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_NoteWarrantMember" xlink:to="us-gaap_NoteWarrantMember_lbl"/>
<loc xlink:type="locator" xlink:label="auid_MadisonIIILLCMember" xlink:href="auid-20231231.xsd#auid_MadisonIIILLCMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_MadisonIIILLCMember_lbl" xml:lang="en-US"> Madison III, LLC [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_MadisonIIILLCMember" xlink:to="auid_MadisonIIILLCMember_lbl"/>
<loc xlink:type="locator" xlink:label="auid_InducementGrantPlanMember" xlink:href="auid-20231231.xsd#auid_InducementGrantPlanMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_InducementGrantPlanMember_lbl" xml:lang="en-US"> Inducement Grant Plan [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_InducementGrantPlanMember" xlink:to="auid_InducementGrantPlanMember_lbl"/>
<loc xlink:type="locator" xlink:label="auid_TwoThousandTwentyThreeStockOptionIssuancesMember" xlink:href="auid-20231231.xsd#auid_TwoThousandTwentyThreeStockOptionIssuancesMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_TwoThousandTwentyThreeStockOptionIssuancesMember_lbl" xml:lang="en-US"> 2023 Stock Option Issuances [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_TwoThousandTwentyThreeStockOptionIssuancesMember" xlink:to="auid_TwoThousandTwentyThreeStockOptionIssuancesMember_lbl"/>
<loc xlink:type="locator" xlink:label="auid_ChiefTechnologyOfficerMember" xlink:href="auid-20231231.xsd#auid_ChiefTechnologyOfficerMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_ChiefTechnologyOfficerMember_lbl" xml:lang="en-US"> Chief Technology Officer [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_ChiefTechnologyOfficerMember" xlink:to="auid_ChiefTechnologyOfficerMember_lbl"/>
<loc xlink:type="locator" xlink:label="auid_AnniePhamMember" xlink:href="auid-20231231.xsd#auid_AnniePhamMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_AnniePhamMember_lbl" xml:lang="en-US"> Annie Pham [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_AnniePhamMember" xlink:to="auid_AnniePhamMember_lbl"/>
<loc xlink:type="locator" xlink:label="auid_TwoThousandTwentyTwoStockOptionIssuancesMember" xlink:href="auid-20231231.xsd#auid_TwoThousandTwentyTwoStockOptionIssuancesMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_TwoThousandTwentyTwoStockOptionIssuancesMember_lbl" xml:lang="en-US"> 2022 Stock Option Issuances [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_TwoThousandTwentyTwoStockOptionIssuancesMember" xlink:to="auid_TwoThousandTwentyTwoStockOptionIssuancesMember_lbl"/>
<loc xlink:type="locator" xlink:label="auid_CardsPlusBusinessInSouthAfricaMember" xlink:href="auid-20231231.xsd#auid_CardsPlusBusinessInSouthAfricaMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_CardsPlusBusinessInSouthAfricaMember_lbl" xml:lang="en-US"> Cards Plus business in South Africa [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_CardsPlusBusinessInSouthAfricaMember" xlink:to="auid_CardsPlusBusinessInSouthAfricaMember_lbl"/>
<loc xlink:type="locator" xlink:label="auid_MultiPayBusinessInColombiaMember" xlink:href="auid-20231231.xsd#auid_MultiPayBusinessInColombiaMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="auid_MultiPayBusinessInColombiaMember_lbl" xml:lang="en-US"> MultiPay business in Colombia [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_MultiPayBusinessInColombiaMember" xlink:to="auid_MultiPayBusinessInColombiaMember_lbl"/>
<loc xlink:type="locator" xlink:label="srt_ProductsAndServicesDomain" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ProductsAndServicesDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_ProductsAndServicesDomain_lbl" xml:lang="en-US"> Product and Service [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_ProductsAndServicesDomain" xlink:to="srt_ProductsAndServicesDomain_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_StatementTable" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StatementTable_lbl" xml:lang="en-US"> Statement [Table] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementTable" xlink:to="us-gaap_StatementTable_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_StatementLineItems" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StatementLineItems_lbl" xml:lang="en-US"> Statement [Line Items] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_StatementLineItems_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_EquityComponentDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityComponentDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EquityComponentDomain_lbl" xml:lang="en-US"> Equity Component [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EquityComponentDomain" xlink:to="us-gaap_EquityComponentDomain_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ClassOfWarrantOrRightDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ClassOfWarrantOrRightDomain_lbl" xml:lang="en-US"> Class of Warrant or Right [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassOfWarrantOrRightDomain" xlink:to="us-gaap_ClassOfWarrantOrRightDomain_lbl"/>
<loc xlink:type="locator" xlink:label="auid_StockholdersEquityTablesTable" xlink:href="auid-20231231.xsd#auid_StockholdersEquityTablesTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_StockholdersEquityTablesTable_lbl" xml:lang="en-US"> Stockholders' Equity (Tables) [Table] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_StockholdersEquityTablesTable" xlink:to="auid_StockholdersEquityTablesTable_lbl"/>
<loc xlink:type="locator" xlink:label="auid_StockholdersEquityTablesLineItems" xlink:href="auid-20231231.xsd#auid_StockholdersEquityTablesLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_StockholdersEquityTablesLineItems_lbl" xml:lang="en-US"> Stockholders' Equity (Tables) [Line Items] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_StockholdersEquityTablesLineItems" xlink:to="auid_StockholdersEquityTablesLineItems_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_AntidilutiveSecuritiesNameDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AntidilutiveSecuritiesNameDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AntidilutiveSecuritiesNameDomain_lbl" xml:lang="en-US"> Antidilutive Securities, Name [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AntidilutiveSecuritiesNameDomain" xlink:to="us-gaap_AntidilutiveSecuritiesNameDomain_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_lbl" xml:lang="en-US"> Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable" xlink:to="us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_lbl" xml:lang="en-US"> Schedule of Diluted Loss per Share [Line Items] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems" xlink:to="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain_lbl" xml:lang="en-US"> Long-Lived Tangible Asset [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:to="us-gaap_PropertyPlantAndEquipmentTypeDomain_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_lbl" xml:lang="en-US"> Property, Plant and Equipment [Table] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:to="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_PropertyPlantAndEquipmentLineItems" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PropertyPlantAndEquipmentLineItems_lbl" xml:lang="en-US"> Schedule of Property and Equipment [Line Items] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems" xlink:to="us-gaap_PropertyPlantAndEquipmentLineItems_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_lbl" xml:lang="en-US"> Finite-Lived Intangible Assets, Major Class Name [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:to="us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_lbl" xml:lang="en-US"> Schedule of Finite-Lived Intangible Assets [Table] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable" xlink:to="us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_FiniteLivedIntangibleAssetsLineItems" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FiniteLivedIntangibleAssetsLineItems_lbl" xml:lang="en-US"> Finite-Lived Intangible Assets [Line Items] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FiniteLivedIntangibleAssetsLineItems" xlink:to="us-gaap_FiniteLivedIntangibleAssetsLineItems_lbl"/>
<loc xlink:type="locator" xlink:label="auid_StockholdersEquityDetailsScheduleofCompanysWarrantActivityTable" xlink:href="auid-20231231.xsd#auid_StockholdersEquityDetailsScheduleofCompanysWarrantActivityTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_StockholdersEquityDetailsScheduleofCompanysWarrantActivityTable_lbl" xml:lang="en-US"> Stockholders' Equity (Details) - Schedule of Company’s Warrant Activity [Table] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_StockholdersEquityDetailsScheduleofCompanysWarrantActivityTable" xlink:to="auid_StockholdersEquityDetailsScheduleofCompanysWarrantActivityTable_lbl"/>
<loc xlink:type="locator" xlink:label="auid_StockholdersEquityDetailsScheduleofCompanysWarrantActivityLineItems" xlink:href="auid-20231231.xsd#auid_StockholdersEquityDetailsScheduleofCompanysWarrantActivityLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_StockholdersEquityDetailsScheduleofCompanysWarrantActivityLineItems_lbl" xml:lang="en-US"> Schedule of Company’s Warrant Activity [Line Items] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_StockholdersEquityDetailsScheduleofCompanysWarrantActivityLineItems" xlink:to="auid_StockholdersEquityDetailsScheduleofCompanysWarrantActivityLineItems_lbl"/>
<loc xlink:type="locator" xlink:label="srt_RangeMember" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_RangeMember_lbl" xml:lang="en-US"> Statistical Measurement [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_RangeMember" xlink:to="srt_RangeMember_lbl"/>
<loc xlink:type="locator" xlink:label="auid_StockholdersEquityDetailsScheduleofGrantDateFairMarketValueofOptionsGrantedTable" xlink:href="auid-20231231.xsd#auid_StockholdersEquityDetailsScheduleofGrantDateFairMarketValueofOptionsGrantedTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_StockholdersEquityDetailsScheduleofGrantDateFairMarketValueofOptionsGrantedTable_lbl" xml:lang="en-US"> Stockholders' Equity (Details) - Schedule of Grant Date Fair Market Value of Options Granted [Table] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_StockholdersEquityDetailsScheduleofGrantDateFairMarketValueofOptionsGrantedTable" xlink:to="auid_StockholdersEquityDetailsScheduleofGrantDateFairMarketValueofOptionsGrantedTable_lbl"/>
<loc xlink:type="locator" xlink:label="auid_ScheduleOfGrantDateFairMarketValueOfOptionsGrantedLineItems" xlink:href="auid-20231231.xsd#auid_ScheduleOfGrantDateFairMarketValueOfOptionsGrantedLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_ScheduleOfGrantDateFairMarketValueOfOptionsGrantedLineItems_lbl" xml:lang="en-US"> Schedule of Grant Date Fair Market Value of Options Granted [Line Items] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_ScheduleOfGrantDateFairMarketValueOfOptionsGrantedLineItems" xlink:to="auid_ScheduleOfGrantDateFairMarketValueOfOptionsGrantedLineItems_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain_lbl" xml:lang="en-US"> Exercise Price Range [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain" xlink:to="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeDomain_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTable" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTable_lbl" xml:lang="en-US"> Share-Based Payment Arrangement, Option, Exercise Price Range [Table] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTable" xlink:to="us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTable_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems_lbl" xml:lang="en-US"> Schedule of Stock Option Information [Line Items] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems" xlink:to="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLineItems_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_SegmentOperatingActivitiesDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SegmentOperatingActivitiesDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SegmentOperatingActivitiesDomain_lbl" xml:lang="en-US"> Operating Activities [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SegmentOperatingActivitiesDomain" xlink:to="us-gaap_SegmentOperatingActivitiesDomain_lbl"/>
<loc xlink:type="locator" xlink:label="auid_DiscontinuedOperationsandAssetsHeldforSaleDetailsScheduleofAssetsandLiabilitiesoftheMultiPaySaleandConsiderationReceivedTable" xlink:href="auid-20231231.xsd#auid_DiscontinuedOperationsandAssetsHeldforSaleDetailsScheduleofAssetsandLiabilitiesoftheMultiPaySaleandConsiderationReceivedTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_DiscontinuedOperationsandAssetsHeldforSaleDetailsScheduleofAssetsandLiabilitiesoftheMultiPaySaleandConsiderationReceivedTable_lbl" xml:lang="en-US"> Discontinued Operations and Assets Held for Sale (Details) - Schedule of Assets and Liabilities of the MultiPay Sale and Consideration Received [Table] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_DiscontinuedOperationsandAssetsHeldforSaleDetailsScheduleofAssetsandLiabilitiesoftheMultiPaySaleandConsiderationReceivedTable" xlink:to="auid_DiscontinuedOperationsandAssetsHeldforSaleDetailsScheduleofAssetsandLiabilitiesoftheMultiPaySaleandConsiderationReceivedTable_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_AssetAcquisitionContingentConsiderationLineItems" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetAcquisitionContingentConsiderationLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AssetAcquisitionContingentConsiderationLineItems_lbl" xml:lang="en-US"> Schedule of Assets and Liabilities of the MultiPay Sale and Consideration Received [Line Items] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetAcquisitionContingentConsiderationLineItems" xlink:to="us-gaap_AssetAcquisitionContingentConsiderationLineItems_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DisposalGroupClassificationDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisposalGroupClassificationDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DisposalGroupClassificationDomain_lbl" xml:lang="en-US"> Disposal Group Classification [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DisposalGroupClassificationDomain" xlink:to="us-gaap_DisposalGroupClassificationDomain_lbl"/>
<loc xlink:type="locator" xlink:label="srt_CondensedIncomeStatementTable" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_CondensedIncomeStatementTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_CondensedIncomeStatementTable_lbl" xml:lang="en-US"> Condensed Income Statement [Table] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_CondensedIncomeStatementTable" xlink:to="srt_CondensedIncomeStatementTable_lbl"/>
<loc xlink:type="locator" xlink:label="srt_CondensedIncomeStatementsCaptionsLineItems" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_CondensedIncomeStatementsCaptionsLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_CondensedIncomeStatementsCaptionsLineItems_lbl" xml:lang="en-US"> Schedule of Operations of Cards Plus and MultiPay [Line Items] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_CondensedIncomeStatementsCaptionsLineItems" xlink:to="srt_CondensedIncomeStatementsCaptionsLineItems_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_lbl" xml:lang="en-US"> Disposal Groups, Including Discontinued Operations [Table] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable" xlink:to="us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_lbl" xml:lang="en-US"> Schedule of Discontinued Operations Assets Held for Sale Criteria for Cards Plus and the MultiPay Operations [Line Items] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems" xlink:to="us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_lbl" xml:lang="en-US"> Award Type [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ShortTermDebtTypeDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShortTermDebtTypeDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShortTermDebtTypeDomain_lbl" xml:lang="en-US"> Short-Term Debt, Type [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShortTermDebtTypeDomain" xlink:to="us-gaap_ShortTermDebtTypeDomain_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_SubsequentEventTypeDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SubsequentEventTypeDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SubsequentEventTypeDomain_lbl" xml:lang="en-US"> Subsequent Event Type [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SubsequentEventTypeDomain" xlink:to="us-gaap_SubsequentEventTypeDomain_lbl"/>
<loc xlink:type="locator" xlink:label="srt_NameOfMajorCustomerDomain" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_NameOfMajorCustomerDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_NameOfMajorCustomerDomain_lbl" xml:lang="en-US"> Customer [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_NameOfMajorCustomerDomain" xlink:to="srt_NameOfMajorCustomerDomain_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ConcentrationRiskBenchmarkDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ConcentrationRiskBenchmarkDomain_lbl" xml:lang="en-US"> Concentration Risk Benchmark [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConcentrationRiskBenchmarkDomain" xlink:to="us-gaap_ConcentrationRiskBenchmarkDomain_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ConcentrationRiskTypeDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ConcentrationRiskTypeDomain_lbl" xml:lang="en-US"> Concentration Risk Type [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConcentrationRiskTypeDomain" xlink:to="us-gaap_ConcentrationRiskTypeDomain_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_BalanceSheetLocationDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BalanceSheetLocationDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_BalanceSheetLocationDomain_lbl" xml:lang="en-US"> Balance Sheet Location [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_BalanceSheetLocationDomain" xlink:to="us-gaap_BalanceSheetLocationDomain_lbl"/>
<loc xlink:type="locator" xlink:label="auid_DescriptionofBusinessandSummaryofSignificantAccountingPoliciesDetailsTable" xlink:href="auid-20231231.xsd#auid_DescriptionofBusinessandSummaryofSignificantAccountingPoliciesDetailsTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_DescriptionofBusinessandSummaryofSignificantAccountingPoliciesDetailsTable_lbl" xml:lang="en-US"> Description of Business and Summary of Significant Accounting Policies (Details) [Table] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_DescriptionofBusinessandSummaryofSignificantAccountingPoliciesDetailsTable" xlink:to="auid_DescriptionofBusinessandSummaryofSignificantAccountingPoliciesDetailsTable_lbl"/>
<loc xlink:type="locator" xlink:label="auid_DescriptionofBusinessandSummaryofSignificantAccountingPoliciesDetailsLineItems" xlink:href="auid-20231231.xsd#auid_DescriptionofBusinessandSummaryofSignificantAccountingPoliciesDetailsLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_DescriptionofBusinessandSummaryofSignificantAccountingPoliciesDetailsLineItems_lbl" xml:lang="en-US"> Description of Business and Summary of Significant Accounting Policies (Details) [Line Items] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_DescriptionofBusinessandSummaryofSignificantAccountingPoliciesDetailsLineItems" xlink:to="auid_DescriptionofBusinessandSummaryofSignificantAccountingPoliciesDetailsLineItems_lbl"/>
<loc xlink:type="locator" xlink:label="srt_TitleOfIndividualWithRelationshipToEntityDomain" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_TitleOfIndividualWithRelationshipToEntityDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_TitleOfIndividualWithRelationshipToEntityDomain_lbl" xml:lang="en-US"> Title of Individual [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_TitleOfIndividualWithRelationshipToEntityDomain" xlink:to="srt_TitleOfIndividualWithRelationshipToEntityDomain_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_LineOfCreditFacilityLenderDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LineOfCreditFacilityLenderDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LineOfCreditFacilityLenderDomain_lbl" xml:lang="en-US"> Line of Credit Facility, Lender [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LineOfCreditFacilityLenderDomain" xlink:to="us-gaap_LineOfCreditFacilityLenderDomain_lbl"/>
<loc xlink:type="locator" xlink:label="auid_WorkingCapitalFacilityDetailsTable" xlink:href="auid-20231231.xsd#auid_WorkingCapitalFacilityDetailsTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_WorkingCapitalFacilityDetailsTable_lbl" xml:lang="en-US"> Working Capital Facility (Details) [Table] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_WorkingCapitalFacilityDetailsTable" xlink:to="auid_WorkingCapitalFacilityDetailsTable_lbl"/>
<loc xlink:type="locator" xlink:label="auid_WorkingCapitalFacilityDetailsLineItems" xlink:href="auid-20231231.xsd#auid_WorkingCapitalFacilityDetailsLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_WorkingCapitalFacilityDetailsLineItems_lbl" xml:lang="en-US"> Working Capital Faciltiy [Line Items] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_WorkingCapitalFacilityDetailsLineItems" xlink:to="auid_WorkingCapitalFacilityDetailsLineItems_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RelatedPartyDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RelatedPartyDomain_lbl" xml:lang="en-US"> Related Party, Type [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RelatedPartyDomain" xlink:to="us-gaap_RelatedPartyDomain_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ClassOfStockDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfStockDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ClassOfStockDomain_lbl" xml:lang="en-US"> Class of Stock [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="us-gaap_ClassOfStockDomain_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DebtInstrumentNameDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentNameDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentNameDomain_lbl" xml:lang="en-US"> Debt Instrument, Name [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentNameDomain" xlink:to="us-gaap_DebtInstrumentNameDomain_lbl"/>
<loc xlink:type="locator" xlink:label="auid_ConvertibleNotesPayableDetailsTable" xlink:href="auid-20231231.xsd#auid_ConvertibleNotesPayableDetailsTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_ConvertibleNotesPayableDetailsTable_lbl" xml:lang="en-US"> Convertible Notes Payable (Details) [Table] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_ConvertibleNotesPayableDetailsTable" xlink:to="auid_ConvertibleNotesPayableDetailsTable_lbl"/>
<loc xlink:type="locator" xlink:label="auid_ConvertibleNotesPayableDetailsLineItems" xlink:href="auid-20231231.xsd#auid_ConvertibleNotesPayableDetailsLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_ConvertibleNotesPayableDetailsLineItems_lbl" xml:lang="en-US"> Convertible Notes Payable [Line Items] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_ConvertibleNotesPayableDetailsLineItems" xlink:to="auid_ConvertibleNotesPayableDetailsLineItems_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyTransactionDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RelatedPartyTransactionDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RelatedPartyTransactionDomain_lbl" xml:lang="en-US"> Related Party Transaction [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RelatedPartyTransactionDomain" xlink:to="us-gaap_RelatedPartyTransactionDomain_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_CreditFacilityDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CreditFacilityDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CreditFacilityDomain_lbl" xml:lang="en-US"> Credit Facility [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CreditFacilityDomain" xlink:to="us-gaap_CreditFacilityDomain_lbl"/>
<loc xlink:type="locator" xlink:label="srt_ScenarioUnspecifiedDomain" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ScenarioUnspecifiedDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_ScenarioUnspecifiedDomain_lbl" xml:lang="en-US"> Scenario [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_ScenarioUnspecifiedDomain" xlink:to="srt_ScenarioUnspecifiedDomain_lbl"/>
<loc xlink:type="locator" xlink:label="srt_EquityMethodInvesteeNameDomain" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_EquityMethodInvesteeNameDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_EquityMethodInvesteeNameDomain_lbl" xml:lang="en-US"> Investment, Name [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_EquityMethodInvesteeNameDomain" xlink:to="srt_EquityMethodInvesteeNameDomain_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DeferredBonusAndProfitSharingArrangementIndividualContractTypeOfDeferredCompensationDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredBonusAndProfitSharingArrangementIndividualContractTypeOfDeferredCompensationDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredBonusAndProfitSharingArrangementIndividualContractTypeOfDeferredCompensationDomain_lbl" xml:lang="en-US"> Deferred Bonus and Profit Sharing Arrangement, Individual Contract, Type of Deferred Compensation [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredBonusAndProfitSharingArrangementIndividualContractTypeOfDeferredCompensationDomain" xlink:to="us-gaap_DeferredBonusAndProfitSharingArrangementIndividualContractTypeOfDeferredCompensationDomain_lbl"/>
<loc xlink:type="locator" xlink:label="auid_RelatedPartyTransactionsDetailsTable" xlink:href="auid-20231231.xsd#auid_RelatedPartyTransactionsDetailsTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_RelatedPartyTransactionsDetailsTable_lbl" xml:lang="en-US"> Related Party Transactions (Details) [Table] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_RelatedPartyTransactionsDetailsTable" xlink:to="auid_RelatedPartyTransactionsDetailsTable_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyTransactionLineItems" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RelatedPartyTransactionLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RelatedPartyTransactionLineItems_lbl" xml:lang="en-US"> Related Party Transaction [Line Items] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RelatedPartyTransactionLineItems" xlink:to="us-gaap_RelatedPartyTransactionLineItems_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_SaleOfStockNameOfTransactionDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SaleOfStockNameOfTransactionDomain_lbl" xml:lang="en-US"> Sale of Stock [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SaleOfStockNameOfTransactionDomain" xlink:to="us-gaap_SaleOfStockNameOfTransactionDomain_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_PlanNameDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PlanNameDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PlanNameDomain_lbl" xml:lang="en-US"> Plan Name [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PlanNameDomain" xlink:to="us-gaap_PlanNameDomain_lbl"/>
<loc xlink:type="locator" xlink:label="auid_StockholdersEquityDetailsTable" xlink:href="auid-20231231.xsd#auid_StockholdersEquityDetailsTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_StockholdersEquityDetailsTable_lbl" xml:lang="en-US"> Stockholders' Equity (Details) [Table] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_StockholdersEquityDetailsTable" xlink:to="auid_StockholdersEquityDetailsTable_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_ClassOfStockLineItems" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfStockLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ClassOfStockLineItems_lbl" xml:lang="en-US"> Stockholders' Equity [Line Items] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ClassOfStockLineItems" xlink:to="us-gaap_ClassOfStockLineItems_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_lbl" xml:lang="en-US"> Disposal Group Name [Domain] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain" xlink:to="us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_lbl"/>
<loc xlink:type="locator" xlink:label="auid_DiscontinuedOperationsandAssetsHeldforSaleDetailsTable" xlink:href="auid-20231231.xsd#auid_DiscontinuedOperationsandAssetsHeldforSaleDetailsTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_DiscontinuedOperationsandAssetsHeldforSaleDetailsTable_lbl" xml:lang="en-US"> Discontinued Operations and Assets Held for Sale (Details) [Table] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_DiscontinuedOperationsandAssetsHeldforSaleDetailsTable" xlink:to="auid_DiscontinuedOperationsandAssetsHeldforSaleDetailsTable_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:label="us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_lbl0" xml:lang="en-US"> Discontinued Operations and Assets Held for Sale [Line Items] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems" xlink:to="us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_lbl0"/>
<loc xlink:type="locator" xlink:label="auid_CommitmentsandContingenciesDetailsTable" xlink:href="auid-20231231.xsd#auid_CommitmentsandContingenciesDetailsTable"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_CommitmentsandContingenciesDetailsTable_lbl" xml:lang="en-US"> Commitments and Contingencies (Details) [Table] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_CommitmentsandContingenciesDetailsTable" xlink:to="auid_CommitmentsandContingenciesDetailsTable_lbl"/>
<loc xlink:type="locator" xlink:label="us-gaap_LossContingenciesLineItems" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LossContingenciesLineItems"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LossContingenciesLineItems_lbl" xml:lang="en-US"> Commitments and Contingencies [Line Items] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LossContingenciesLineItems" xlink:to="us-gaap_LossContingenciesLineItems_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_AccruedSeveranceLiability_lbl0" xml:lang="en-US"> The amount of accrued severance liability. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_AccruedSeveranceLiability" xlink:to="auid_AccruedSeveranceLiability_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_AggregateAmount_lbl0" xml:lang="en-US"> The amount of aggregate amount. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_AggregateAmount" xlink:to="auid_AggregateAmount_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_AggregateGrossProceeds_lbl0" xml:lang="en-US"> Aggregate gross proceeds. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_AggregateGrossProceeds" xlink:to="auid_AggregateGrossProceeds_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_AmendedAmount_lbl0" xml:lang="en-US"> The amount of amended. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_AmendedAmount" xlink:to="auid_AmendedAmount_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_AnnualBaseSalaryAmount_lbl0" xml:lang="en-US"> Annual base salary amount. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_AnnualBaseSalaryAmount" xlink:to="auid_AnnualBaseSalaryAmount_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_CardPlusAmountReceived_lbl0" xml:lang="en-US"> The amount of card plus amount received. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_CardPlusAmountReceived" xlink:to="auid_CardPlusAmountReceived_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_CashPaidForWorkingCapitalFacility_lbl0" xml:lang="en-US"> Cash paid for working capital facility. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_CashPaidForWorkingCapitalFacility" xlink:to="auid_CashPaidForWorkingCapitalFacility_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_CashlessOptionAndWarrantExercises_lbl0" xml:lang="en-US"> The amount of cashless option and warrant exercises. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_CashlessOptionAndWarrantExercises" xlink:to="auid_CashlessOptionAndWarrantExercises_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_CommonStockForWorkingCapitalFacility_lbl0" xml:lang="en-US"> Amount of Common stock for working capital facility. .. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_CommonStockForWorkingCapitalFacility" xlink:to="auid_CommonStockForWorkingCapitalFacility_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_ConversionExpense_lbl1" xml:lang="en-US"> The amount of conversion expense. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_ConversionExpense" xlink:to="auid_ConversionExpense_lbl1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_ConversionOfConvertibleNotesToCommonStock_lbl0" xml:lang="en-US"> Conversion of convertible notes to common stock. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_ConversionOfConvertibleNotesToCommonStock" xlink:to="auid_ConversionOfConvertibleNotesToCommonStock_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_ConversionOfCreditFacilityBorrowingsIntoCommonStock_lbl0" xml:lang="en-US"> The amount of conversion of credit facility borrowings into common stock. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_ConversionOfCreditFacilityBorrowingsIntoCommonStock" xlink:to="auid_ConversionOfCreditFacilityBorrowingsIntoCommonStock_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_DeferredContractLiability_lbl0" xml:lang="en-US"> Amount of deferred contract liability. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_DeferredContractLiability" xlink:to="auid_DeferredContractLiability_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_DeferredSeverance_lbl0" xml:lang="en-US"> Amount of deferred severance. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_DeferredSeverance" xlink:to="auid_DeferredSeverance_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_DisposalGroupIncludingDiscontinuedOperatioNetConsideration_lbl0" xml:lang="en-US"> Net consideration value. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_DisposalGroupIncludingDiscontinuedOperatioNetConsideration" xlink:to="auid_DisposalGroupIncludingDiscontinuedOperatioNetConsideration_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_DisposalGroupIncludingDiscontinuedOperationImpairmentLoss_lbl0" xml:lang="en-US"> Amount classified as Impairment loss attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_DisposalGroupIncludingDiscontinuedOperationImpairmentLoss" xlink:to="auid_DisposalGroupIncludingDiscontinuedOperationImpairmentLoss_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_DisposalGroupIncludingDiscontinuedOperationImpairmentOfIntangibleAssets_lbl0" xml:lang="en-US"> Represent the amount of disposal group including discontinued operation impairment of intangible assets. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_DisposalGroupIncludingDiscontinuedOperationImpairmentOfIntangibleAssets" xlink:to="auid_DisposalGroupIncludingDiscontinuedOperationImpairmentOfIntangibleAssets_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_DisposalGroupIncludingDiscontinuedOperationIncreaseDecreaseInAccountsPayableAndAccruedLiabilities_lbl0" xml:lang="en-US"> Represent the amount of disposal group including discontinued operation increase decrease in accounts payable and accrued liabilities. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_DisposalGroupIncludingDiscontinuedOperationIncreaseDecreaseInAccountsPayableAndAccruedLiabilities" xlink:to="auid_DisposalGroupIncludingDiscontinuedOperationIncreaseDecreaseInAccountsPayableAndAccruedLiabilities_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_DisposalGroupIncludingDiscontinuedOperationIncreaseDecreaseInAccountsReceivable_lbl0" xml:lang="en-US"> Represent the amount of disposal group including discontinued operation increase decrease in accounts receivable. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_DisposalGroupIncludingDiscontinuedOperationIncreaseDecreaseInAccountsReceivable" xlink:to="auid_DisposalGroupIncludingDiscontinuedOperationIncreaseDecreaseInAccountsReceivable_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_DisposalGroupIncludingDiscontinuedOperationIncreaseDecreaseInDeferredRevenue_lbl0" xml:lang="en-US"> Represent the amount of disposal group including discontinued operation deferred revenue. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_DisposalGroupIncludingDiscontinuedOperationIncreaseDecreaseInDeferredRevenue" xlink:to="auid_DisposalGroupIncludingDiscontinuedOperationIncreaseDecreaseInDeferredRevenue_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_DisposalGroupIncludingDiscontinuedOperationIncreaseDecreaseInInventory_lbl0" xml:lang="en-US"> Represent the amount of disposal group including discontinued operation increase decrease in inventory. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_DisposalGroupIncludingDiscontinuedOperationIncreaseDecreaseInInventory" xlink:to="auid_DisposalGroupIncludingDiscontinuedOperationIncreaseDecreaseInInventory_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_DisposalGroupIncludingDiscontinuedOperationIncreaseDecreaseInOtherCurrentAssets_lbl0" xml:lang="en-US"> Represent the amount of disposal group including discontinued operation increase decrease in other current assets. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_DisposalGroupIncludingDiscontinuedOperationIncreaseDecreaseInOtherCurrentAssets" xlink:to="auid_DisposalGroupIncludingDiscontinuedOperationIncreaseDecreaseInOtherCurrentAssets_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_DisposalGroupIncludingDiscontinuedOperationLessValueAddedTax_lbl0" xml:lang="en-US"> Amount classified as value added tax attributable to disposal group held for sale or disposed of. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_DisposalGroupIncludingDiscontinuedOperationLessValueAddedTax" xlink:to="auid_DisposalGroupIncludingDiscontinuedOperationLessValueAddedTax_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_DisposalGroupIncludingDiscontinuedOperationNonoperatingIncomeexpenseNet_lbl0" xml:lang="en-US"> Amount of nonoperating income (loss) attributable to disposal group, including, but not limited to, discontinued operation. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_DisposalGroupIncludingDiscontinuedOperationNonoperatingIncomeexpenseNet" xlink:to="auid_DisposalGroupIncludingDiscontinuedOperationNonoperatingIncomeexpenseNet_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_DisposalGroupNotDiscontinuedOperationRecognizedGain_lbl0" xml:lang="en-US"> Amount before tax of gain (loss) recognized on the sale or disposal of a disposal group. Excludes discontinued operations. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_DisposalGroupNotDiscontinuedOperationRecognizedGain" xlink:to="auid_DisposalGroupNotDiscontinuedOperationRecognizedGain_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_EffectiveIncomeTaxRateLossOnDebtExtinguishment_lbl0" xml:lang="en-US"> Loss on debt extinguishment. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_EffectiveIncomeTaxRateLossOnDebtExtinguishment" xlink:to="auid_EffectiveIncomeTaxRateLossOnDebtExtinguishment_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_EstimatedGrantDateFairValue_lbl0" xml:lang="en-US"> Estimated grant date fair value. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_EstimatedGrantDateFairValue" xlink:to="auid_EstimatedGrantDateFairValue_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_ExcessInsuredAmountsFederalDepositoryCorporation_lbl0" xml:lang="en-US"> Excess insured amounts federal depository corporation. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_ExcessInsuredAmountsFederalDepositoryCorporation" xlink:to="auid_ExcessInsuredAmountsFederalDepositoryCorporation_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_GoingConcernPolicyTextBlock_lbl0" xml:lang="en-US"> Disclosure of accounting policy for going concern. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_GoingConcernPolicyTextBlock" xlink:to="auid_GoingConcernPolicyTextBlock_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_IncomeTaxesDiscontinuedOperations_lbl0" xml:lang="en-US"> The amount of Income taxes discontinued operations. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_IncomeTaxesDiscontinuedOperations" xlink:to="auid_IncomeTaxesDiscontinuedOperations_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_IssuedOfCommonStockOriginationFee_lbl0" xml:lang="en-US"> Issued of common stock origination fee. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_IssuedOfCommonStockOriginationFee" xlink:to="auid_IssuedOfCommonStockOriginationFee_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_NonCash_lbl0" xml:lang="en-US"> Non-cash. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_NonCash" xlink:to="auid_NonCash_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_NumberOfNonemployeeDirectors_lbl0" xml:lang="en-US"> Number of non-employee directors. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_NumberOfNonemployeeDirectors" xlink:to="auid_NumberOfNonemployeeDirectors_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_PaymentsToAcquirePropertyPlantAndEquipmentFromDiscontinuedOperations_lbl0" xml:lang="en-US"> Purchase of property and equipment - discontinued operations. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_PaymentsToAcquirePropertyPlantAndEquipmentFromDiscontinuedOperations" xlink:to="auid_PaymentsToAcquirePropertyPlantAndEquipmentFromDiscontinuedOperations_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_PercentageOfConvertibleNotesDue_lbl0" xml:lang="en-US"> Percentage of convertible notes due. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_PercentageOfConvertibleNotesDue" xlink:to="auid_PercentageOfConvertibleNotesDue_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_PercentageOfOutstandingShares_lbl0" xml:lang="en-US"> Percentage of outstanding shares. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_PercentageOfOutstandingShares" xlink:to="auid_PercentageOfOutstandingShares_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_PerfomanceBasedBonusAmount_lbl0" xml:lang="en-US"> Perfomance based bonus amount. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_PerfomanceBasedBonusAmount" xlink:to="auid_PerfomanceBasedBonusAmount_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_PerformanceBasedAndMarketBasedOptions_lbl0" xml:lang="en-US"> Number of performance based and market based options. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_PerformanceBasedAndMarketBasedOptions" xlink:to="auid_PerformanceBasedAndMarketBasedOptions_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_PerformanceContributionsAggregateAmount_lbl0" xml:lang="en-US"> The amount of performance contributions aggregate amount. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_PerformanceContributionsAggregateAmount" xlink:to="auid_PerformanceContributionsAggregateAmount_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_ProceedsFromSaleOfDiscontinuedOperations_lbl0" xml:lang="en-US"> Proceeds from sale of discontinued operations. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_ProceedsFromSaleOfDiscontinuedOperations" xlink:to="auid_ProceedsFromSaleOfDiscontinuedOperations_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_SaleOfCardPlus_lbl0" xml:lang="en-US"> The amount of sale of card plus. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_SaleOfCardPlus" xlink:to="auid_SaleOfCardPlus_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_SettlementOfAccountsPayableWithIssuanceOfCommonStock_lbl0" xml:lang="en-US"> Amount of settlement of accounts payable with issuance of common stock. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_SettlementOfAccountsPayableWithIssuanceOfCommonStock" xlink:to="auid_SettlementOfAccountsPayableWithIssuanceOfCommonStock_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercisedWeightedAverageExercisePrice_lbl0" xml:lang="en-US"> Represent the share based compensation arrangement by share based payment award non option equity instruments exercised weighted average exercise price. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercisedWeightedAverageExercisePrice" xlink:to="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercisedWeightedAverageExercisePrice_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercisedWeightedAverageRemainingContractualTerm_lbl0" xml:lang="en-US"> Represent the share based compensation arrangement by share based payment award non option equity instruments exercised weighted average remaining contractual term. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercisedWeightedAverageRemainingContractualTerm" xlink:to="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercisedWeightedAverageRemainingContractualTerm_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGrantedWeightedAverageExercisePrice_lbl0" xml:lang="en-US"> Represent the share based compensation arrangement by share based payment award non option equity instruments granted weighted average exercise price. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGrantedWeightedAverageExercisePrice" xlink:to="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGrantedWeightedAverageExercisePrice_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGrantedWeightedAverageRemainingContractualTerm_lbl0" xml:lang="en-US"> Represent the share based compensation arrangement by share based payment award non option equity instruments granted weighted average remaining contractual term. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGrantedWeightedAverageRemainingContractualTerm" xlink:to="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGrantedWeightedAverageRemainingContractualTerm_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingWeightedAverageExercisePrice_lbl0" xml:lang="en-US"> Represent the share based compensation arrangement by share based payment award non option equity instruments outstanding weighted average exercise price. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingWeightedAverageExercisePrice" xlink:to="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingWeightedAverageExercisePrice_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingWeightedAverageRemainingContractualTerm_lbl0" xml:lang="en-US"> Represent the amount of share based compensation arrangement by share based payment award non option equity instruments outstanding weighted average remaining contractual term. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingWeightedAverageRemainingContractualTerm" xlink:to="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingWeightedAverageRemainingContractualTerm_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantInPeriodGrantDateIntrinsicValue_lbl0" xml:lang="en-US"> Aggregate intrinsic value, granted. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantInPeriodGrantDateIntrinsicValue" xlink:to="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantInPeriodGrantDateIntrinsicValue_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsAggregateIntrinsicValueForfeitedcancelled_lbl0" xml:lang="en-US"> Aggregate intrinsic value forfeited/cancelled value. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsAggregateIntrinsicValueForfeitedcancelled" xlink:to="auid_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsAggregateIntrinsicValueForfeitedcancelled_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsGrantedWeightedAverageRemainingContractualTerm1_lbl0" xml:lang="en-US"> Weighted Average Contractual Term, Granted. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsGrantedWeightedAverageRemainingContractualTerm1" xlink:to="auid_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsGrantedWeightedAverageRemainingContractualTerm1_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsWeightedAverageContractualLifeExercised_lbl0" xml:lang="en-US"> Weighted average contractual life, exercised. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsWeightedAverageContractualLifeExercised" xlink:to="auid_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsWeightedAverageContractualLifeExercised_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsWeightedAverageContractualLifeForfeitedcancelled_lbl0" xml:lang="en-US"> Weighted average contractual life, forfeited/cancelled. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsWeightedAverageContractualLifeForfeitedcancelled" xlink:to="auid_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsWeightedAverageContractualLifeForfeitedcancelled_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_SharesIssuedInLieuOfInterest_lbl0" xml:lang="en-US"> The amount of shares issued in lieu of interest. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_SharesIssuedInLieuOfInterest" xlink:to="auid_SharesIssuedInLieuOfInterest_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_SharesOfCommonStockExchanged_lbl0" xml:lang="en-US"> Reprersent the share of common stock exchanged. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_SharesOfCommonStockExchanged" xlink:to="auid_SharesOfCommonStockExchanged_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_StockBasedCompensationCommonStockValue_lbl0" xml:lang="en-US"> Stock based compensation common stock value. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_StockBasedCompensationCommonStockValue" xlink:to="auid_StockBasedCompensationCommonStockValue_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_StockIssuedDuringPeriodShareConversionOfCreditFacilityBorrowingsIntoCommonStockinShares_lbl0" xml:lang="en-US"> Conversion of credit facility borrowings into common stock. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_StockIssuedDuringPeriodShareConversionOfCreditFacilityBorrowingsIntoCommonStockinShares" xlink:to="auid_StockIssuedDuringPeriodShareConversionOfCreditFacilityBorrowingsIntoCommonStockinShares_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_StockIssuedDuringPeriodSharesCashlessWarrantExercise_lbl0" xml:lang="en-US"> Number of shares cashless warrant exercise. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_StockIssuedDuringPeriodSharesCashlessWarrantExercise" xlink:to="auid_StockIssuedDuringPeriodSharesCashlessWarrantExercise_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_StockIssuedDuringPeriodSharesCommonStockIssuedWithConvertibleDebtin_lbl0" xml:lang="en-US"> Common stock issued with convertible debt shares. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_StockIssuedDuringPeriodSharesCommonStockIssuedWithConvertibleDebtin" xlink:to="auid_StockIssuedDuringPeriodSharesCommonStockIssuedWithConvertibleDebtin_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_StockIssuedDuringPeriodValueCashlessWarrantExercise_lbl0" xml:lang="en-US"> The amount of cashless warrant exercise. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_StockIssuedDuringPeriodValueCashlessWarrantExercise" xlink:to="auid_StockIssuedDuringPeriodValueCashlessWarrantExercise_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_StockIssuedDuringPeriodValueCommonStockIssuedWithConvertibleDebt_lbl0" xml:lang="en-US"> cAmount of ommon stock issued with convertible debt. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_StockIssuedDuringPeriodValueCommonStockIssuedWithConvertibleDebt" xlink:to="auid_StockIssuedDuringPeriodValueCommonStockIssuedWithConvertibleDebt_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_StockIssuedDuringPeriodValueConversionOfCreditFacilityBorrowingsIntoCommonStock_lbl0" xml:lang="en-US"> Conversion of credit facility borrowings into common stock. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_StockIssuedDuringPeriodValueConversionOfCreditFacilityBorrowingsIntoCommonStock" xlink:to="auid_StockIssuedDuringPeriodValueConversionOfCreditFacilityBorrowingsIntoCommonStock_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_StockIssuedDuringPeriodValueIssuedForServicesTotalPaid_lbl0" xml:lang="en-US"> Value of stock issued in lieu of cash for services contributed to the entity. Value of the stock issued includes, but is not limited to, services contributed by vendors and founders total paid. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_StockIssuedDuringPeriodValueIssuedForServicesTotalPaid" xlink:to="auid_StockIssuedDuringPeriodValueIssuedForServicesTotalPaid_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_UnamortizedWorkingCapitalFacilityFeesCurrent_lbl0" xml:lang="en-US"> The amount of unamortized working capital facility fees. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnamortizedWorkingCapitalFacilityFeesCurrent" xlink:to="auid_UnamortizedWorkingCapitalFacilityFeesCurrent_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_UnamortizedWorkingCapitalFacilityFeesNonCurrent_lbl0" xml:lang="en-US"> Unamortized working capital facility fees. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnamortizedWorkingCapitalFacilityFeesNonCurrent" xlink:to="auid_UnamortizedWorkingCapitalFacilityFeesNonCurrent_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_UnsecuredLineOfCreditFacility_lbl0" xml:lang="en-US"> Unsecured line of credit facility. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnsecuredLineOfCreditFacility" xlink:to="auid_UnsecuredLineOfCreditFacility_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_WarrantForServicesWithTheIssuanceOfConvertibleDebt_lbl0" xml:lang="en-US"> The amount of warrants for services with the issuance of convertible debt. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_WarrantForServicesWithTheIssuanceOfConvertibleDebt" xlink:to="auid_WarrantForServicesWithTheIssuanceOfConvertibleDebt_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_AcquiredAndDevelopedSoftwareMember_lbl0" xml:lang="en-US"> Represents information related to acquired and developed software. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_AcquiredAndDevelopedSoftwareMember" xlink:to="auid_AcquiredAndDevelopedSoftwareMember_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:label="auid_MultiPayAbstract_lbl0" xml:lang="en-US"> MultiPay. </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_MultiPayAbstract" xlink:to="auid_MultiPayAbstract_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_CashPaidForWorkingCapitalFacility_lbl1" xml:lang="en-US"> Cash Paid For Working Capital Facility </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_CashPaidForWorkingCapitalFacility" xlink:to="auid_CashPaidForWorkingCapitalFacility_lbl1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherNoncashExpense_lbl0" xml:lang="en-US"> Other Noncash Expense </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherNoncashExpense" xlink:to="us-gaap_OtherNoncashExpense_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherNonoperatingIncomeExpense_lbl0" xml:lang="en-US"> Other Nonoperating Income (Expense) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherNonoperatingIncomeExpense" xlink:to="us-gaap_OtherNonoperatingIncomeExpense_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FinanceLeasePrincipalPayments_lbl0" xml:lang="en-US"> Finance Lease, Principal Payments </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_FinanceLeasePrincipalPayments" xlink:to="us-gaap_FinanceLeasePrincipalPayments_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_StockIssuedDuringPeriodValueConversionOfCreditFacilityBorrowingsIntoCommonStock_lbl1" xml:lang="en-US"> Stock Issued During Period Value Conversion Of Credit Facility Borrowings Into Common Stock </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_StockIssuedDuringPeriodValueConversionOfCreditFacilityBorrowingsIntoCommonStock" xlink:to="auid_StockIssuedDuringPeriodValueConversionOfCreditFacilityBorrowingsIntoCommonStock_lbl1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsGrantedWeightedAverageRemainingContractualTerm1_lbl1" xml:lang="en-US"> Sharebased Compensation Arrangement By Sharebased Payment Award Options Granted Weighted Average Remaining Contractual Term1 </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsGrantedWeightedAverageRemainingContractualTerm1" xlink:to="auid_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsGrantedWeightedAverageRemainingContractualTerm1_lbl1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_StockIssuedDuringPeriodSharesCashlessWarrantExercise_lbl1" xml:lang="en-US"> Stock Issued During Period Shares Cashless Warrant Exercise </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_StockIssuedDuringPeriodSharesCashlessWarrantExercise" xlink:to="auid_StockIssuedDuringPeriodSharesCashlessWarrantExercise_lbl1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DepreciationAndAmortization_lbl0" xml:lang="en-US"> Depreciation, Depletion and Amortization, Nonproduction </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DepreciationAndAmortization" xlink:to="us-gaap_DepreciationAndAmortization_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AdjustmentsNoncashItemsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_lbl0" xml:lang="en-US"> Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CapitalizedContractCostTableTextBlock_lbl0" xml:lang="en-US"> Capitalized Contract Cost [Table Text Block] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_PerformanceContributionsAggregateAmount_lbl1" xml:lang="en-US"> Performance Contributions Aggregate Amount </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_UnlabeledAbstract18_lbl0" xml:lang="en-US"> Unlabeled Abstract18 </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_UnlabeledAbstract19_lbl0" xml:lang="en-US"> Unlabeled Abstract19 </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_lbl0" xml:lang="en-US"> Net Cash Provided by (Used in) Investing Activities [Abstract] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_UnlabeledAbstract16_lbl0" xml:lang="en-US"> Unlabeled Abstract16 </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_UnlabeledAbstract17_lbl0" xml:lang="en-US"> Unlabeled Abstract17 </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeLossFromContinuingOperationsPerBasicShare_lbl0" xml:lang="en-US"> Income (Loss) from Continuing Operations, Per Basic Share </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_MaximumMember_lbl0" xml:lang="en-US"> Maximum [Member] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationInterestExpense_lbl0" xml:lang="en-US"> Disposal Group, Including Discontinued Operation, Interest Expense </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_UnlabeledAbstract21_lbl0" xml:lang="en-US"> Unlabeled Abstract21 </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_UnlabeledAbstract22_lbl0" xml:lang="en-US"> Unlabeled Abstract22 </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_UnlabeledAbstract20_lbl0" xml:lang="en-US"> Unlabeled Abstract20 </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_UnlabeledAbstract25_lbl0" xml:lang="en-US"> Unlabeled Abstract25 </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare_lbl1" xml:lang="en-US"> Common Stock, Par or Stated Value Per Share </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_UnlabeledAbstract26_lbl0" xml:lang="en-US"> Unlabeled Abstract26 </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_UnlabeledAbstract23_lbl0" xml:lang="en-US"> Unlabeled Abstract23 </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_UnlabeledAbstract24_lbl0" xml:lang="en-US"> Unlabeled Abstract24 </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_UnlabeledAbstract29_lbl0" xml:lang="en-US"> Unlabeled Abstract29 </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommonStockSharesOutstanding_lbl2" xml:lang="en-US"> Common Stock, Shares, Outstanding </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherIncomeAbstract_lbl1" xml:lang="en-US"> Component of Operating Income [Abstract] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_UnlabeledAbstract27_lbl0" xml:lang="en-US"> Unlabeled Abstract27 </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_MinimumMember_lbl0" xml:lang="en-US"> Minimum [Member] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_UnlabeledAbstract28_lbl0" xml:lang="en-US"> Unlabeled Abstract28 </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_Depreciation_lbl0" xml:lang="en-US"> Depreciation </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercisedWeightedAverageExercisePrice_lbl1" xml:lang="en-US"> Share Based Compensation Arrangement By Share Based Payment Award Non Option Equity Instruments Exercised Weighted Average Exercise Price </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfOutstandingOptions_lbl0" xml:lang="en-US"> Share-Based Payment Arrangement, Option, Exercise Price Range, Shares Outstanding </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_DeferredContractLiability_lbl1" xml:lang="en-US"> Deferred Contract Liability </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_lbl0" xml:lang="en-US"> Class of Warrant or Right, Number of Securities Called by Warrants or Rights </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ConcentrationRiskCreditRisk_lbl0" xml:lang="en-US"> Concentration Risk, Credit Risk, Policy [Policy Text Block] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AdditionalPaidInCapitalMember_lbl0" xml:lang="en-US"> Additional Paid-in Capital [Member] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_UnlabeledAbstract32_lbl0" xml:lang="en-US"> Unlabeled Abstract32 </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ComputerEquipmentMember_lbl0" xml:lang="en-US"> Computer Equipment [Member] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_UnlabeledAbstract33_lbl0" xml:lang="en-US"> Unlabeled Abstract33 </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_OtherExpenseIncomeAbstract_lbl0" xml:lang="en-US"> Other Expense Income Abstract </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_UnlabeledAbstract31_lbl0" xml:lang="en-US"> Unlabeled Abstract31 </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_UnlabeledAbstract36_lbl0" xml:lang="en-US"> Unlabeled Abstract36 </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_ProceedsFromSaleOfDiscontinuedOperations_lbl1" xml:lang="en-US"> Proceeds From Sale Of Discontinued Operations </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_UnlabeledAbstract37_lbl0" xml:lang="en-US"> Unlabeled Abstract37 </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SalariesAndWages_lbl0" xml:lang="en-US"> Salary and Wage, NonOfficer, Excluding Cost of Good and Service Sold </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingExpensesAbstract_lbl0" xml:lang="en-US"> Operating Expenses [Abstract] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_lbl0" xml:lang="en-US"> Payments to Acquire Property, Plant, and Equipment </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths_lbl0" xml:lang="en-US"> Finite-Lived Intangible Asset, Expected Amortization, Year One </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber_lbl0" xml:lang="en-US"> Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_SaleConsiderationOnDispositionOfNetAssetsAbstract_lbl0" xml:lang="en-US"> Sale Consideration On Disposition Of Net Assets Abstract </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingIntrinsicValue_lbl0" xml:lang="en-US"> Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PropertyPlantAndEquipmentNet_lbl0" xml:lang="en-US"> Property, Plant and Equipment, Net </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_VerifiedSoftwareLicenseMember_lbl0" xml:lang="en-US"> Verified Software License Member </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_LessAbstract_lbl0" xml:lang="en-US"> Less Abstract </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_lbl0" xml:lang="en-US"> Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1_lbl0" xml:lang="en-US"> Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Intrinsic Value </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InvestmentOwnedBalanceContracts_lbl0" xml:lang="en-US"> Investment Owned, Balance, Contracts </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeTaxPolicyTextBlock_lbl0" xml:lang="en-US"> Income Tax, Policy [Policy Text Block] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_Goodwill_lbl0" xml:lang="en-US"> Goodwill </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_AnniePhamMember_lbl0" xml:lang="en-US"> Annie Pham Member </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockAndWarrantsIssuedDuringPeriodValuePreferredStockAndWarrants_lbl0" xml:lang="en-US"> Stock and Warrants Issued During Period, Value, Preferred Stock and Warrants </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtDisclosureTextBlock_lbl0" xml:lang="en-US"> Debt Disclosure [Text Block] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AssetImpairmentCharges_lbl0" xml:lang="en-US"> Asset Impairment Charges </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_TradeAndOtherAccountsReceivablePolicy_lbl0" xml:lang="en-US"> Accounts Receivable [Policy Text Block] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PrepaidInsurance_lbl0" xml:lang="en-US"> Prepaid Insurance </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_MrSzokeMember_lbl0" xml:lang="en-US"> Mr Szoke Member </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare_lbl0" xml:lang="en-US"> Income (Loss) from Continuing Operations, Per Diluted Share </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AssetsHeldForSaleNotPartOfDisposalGroup_lbl0" xml:lang="en-US"> Asset, Held-for-Sale, Not Part of Disposal Group </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SharesIssued_lbl1" xml:lang="en-US"> Shares, Issued </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit_lbl0" xml:lang="en-US"> Retained Earnings (Accumulated Deficit) </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LeaseCost_lbl1" xml:lang="en-US"> Lease, Cost </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationConsideration_lbl0" xml:lang="en-US"> Disposal Group, Including Discontinued Operation, Consideration </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_lbl1" xml:lang="en-US"> Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherIncome_lbl0" xml:lang="en-US"> Other Income </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic_lbl0" xml:lang="en-US"> Income (Loss) from Continuing Operations before Income Taxes, Domestic </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_UnlabeledAbstract10_lbl0" xml:lang="en-US"> Unlabeled Abstract10 </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_UnlabeledAbstract11_lbl0" xml:lang="en-US"> Unlabeled Abstract11 </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_lbl0" xml:lang="en-US"> Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockIssuedDuringPeriodSharesReverseStockSplits_lbl0" xml:lang="en-US"> Stock Issued During Period, Shares, Reverse Stock Splits </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_UnlabeledAbstract15_lbl0" xml:lang="en-US"> Unlabeled Abstract15 </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod_lbl0" xml:lang="en-US"> Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures in Period </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LineOfCreditFacilityPeriodicPayment_lbl0" xml:lang="en-US"> Line of Credit Facility, Periodic Payment </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FurnitureAndFixturesMember_lbl0" xml:lang="en-US"> Furniture and Fixtures [Member] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_AnnualBaseSalaryAmount_lbl1" xml:lang="en-US"> Annual Base Salary Amount </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProceedsFromLoanOriginations1_lbl0" xml:lang="en-US"> Proceeds from Loan Originations </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ManagementAndServiceFeesBaseRate_lbl0" xml:lang="en-US"> Management and Service Fees, Base Rate </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeLossAttributableToParent_lbl0" xml:lang="en-US"> Income (Loss) Attributable to Parent, before Tax </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ComprehensiveIncomeNetOfTax_lbl0" xml:lang="en-US"> Comprehensive Income (Loss), Net of Tax, Attributable to Parent </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherDepreciationAndAmortization_lbl0" xml:lang="en-US"> Other Depreciation and Amortization </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccruedPayrollTaxesCurrent_lbl0" xml:lang="en-US"> Accrued Payroll Taxes, Current </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_MrStephenJGarchikMember_lbl1" xml:lang="en-US"> Mr Stephen JGarchik Member </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PatentsMember_lbl0" xml:lang="en-US"> Patents [Member] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_UnlabeledAbstract2_lbl0" xml:lang="en-US"> Unlabeled Abstract2 </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract2" xlink:to="auid_UnlabeledAbstract2_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_WorkingCapitalFaciltiyTextBlock_lbl0" xml:lang="en-US"> Working Capital Faciltiy Text Block </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_WorkingCapitalFaciltiyTextBlock" xlink:to="auid_WorkingCapitalFaciltiyTextBlock_lbl0"/>
<loc xlink:type="locator" xlink:label="auid_ScheduleOfDilutedLossPerShareAbstract" xlink:href="auid-20231231.xsd#auid_ScheduleOfDilutedLossPerShareAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_ScheduleOfDilutedLossPerShareAbstract_lbl" xml:lang="en-US"> Schedule Of Diluted Loss Per Share Abstract </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_UnlabeledAbstract1_lbl0" xml:lang="en-US"> Unlabeled Abstract1 </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract1" xlink:to="auid_UnlabeledAbstract1_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTableTextBlock_lbl0" xml:lang="en-US"> Schedule of Finite-Lived Intangible Assets [Table Text Block] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_UnlabeledAbstract4_lbl0" xml:lang="en-US"> Unlabeled Abstract4 </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract4" xlink:to="auid_UnlabeledAbstract4_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherAccruedLiabilitiesCurrent_lbl0" xml:lang="en-US"> Other Accrued Liabilities, Current </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherAccruedLiabilitiesCurrent" xlink:to="us-gaap_OtherAccruedLiabilitiesCurrent_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_UnlabeledAbstract3_lbl0" xml:lang="en-US"> Unlabeled Abstract3 </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract3" xlink:to="auid_UnlabeledAbstract3_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_StockIssuedDuringPeriodWarrantExerciseForCashinShares_lbl0" xml:lang="en-US"> Stock Issued During Period Warrant Exercise For Cashin Shares </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_StockIssuedDuringPeriodWarrantExerciseForCashinShares" xlink:to="auid_StockIssuedDuringPeriodWarrantExerciseForCashinShares_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeMember_lbl0" xml:lang="en-US"> AOCI Attributable to Parent [Member] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_UnlabeledAbstract0_lbl0" xml:lang="en-US"> Unlabeled Abstract0 </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract0" xlink:to="auid_UnlabeledAbstract0_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherAssetImpairmentCharges_lbl1" xml:lang="en-US"> Other Asset Impairment Charges </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherAssetImpairmentCharges" xlink:to="us-gaap_OtherAssetImpairmentCharges_lbl1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccountsPayableAndAccruedLiabilitiesDisclosureTextBlock_lbl0" xml:lang="en-US"> Accounts Payable and Accrued Liabilities Disclosure [Text Block] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_UnlabeledAbstract9_lbl0" xml:lang="en-US"> Unlabeled Abstract9 </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract9" xlink:to="auid_UnlabeledAbstract9_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_DeferredSeverance_lbl1" xml:lang="en-US"> Deferred Severance </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_DeferredSeverance" xlink:to="auid_DeferredSeverance_lbl1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_UnlabeledAbstract6_lbl0" xml:lang="en-US"> Unlabeled Abstract6 </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract6" xlink:to="auid_UnlabeledAbstract6_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_UnlabeledAbstract5_lbl0" xml:lang="en-US"> Unlabeled Abstract5 </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract5" xlink:to="auid_UnlabeledAbstract5_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_UnlabeledAbstract8_lbl0" xml:lang="en-US"> Unlabeled Abstract8 </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract8" xlink:to="auid_UnlabeledAbstract8_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_UnlabeledAbstract7_lbl0" xml:lang="en-US"> Unlabeled Abstract7 </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract7" xlink:to="auid_UnlabeledAbstract7_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ConvertibleDebt_lbl0" xml:lang="en-US"> Convertible Debt </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConvertibleDebt" xlink:to="us-gaap_ConvertibleDebt_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherAssetsNoncurrentAbstract_lbl0" xml:lang="en-US"> Other Assets, Noncurrent [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherAssetsNoncurrentAbstract" xlink:to="us-gaap_OtherAssetsNoncurrentAbstract_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfOtherCurrentAssetsTableTextBlock_lbl0" xml:lang="en-US"> Schedule of Other Current Assets [Table Text Block] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfOtherCurrentAssetsTableTextBlock" xlink:to="us-gaap_ScheduleOfOtherCurrentAssetsTableTextBlock_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_MichaelThompsonMember_lbl0" xml:lang="en-US"> Michael Thompson Member </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_MichaelThompsonMember" xlink:to="auid_MichaelThompsonMember_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_ChiefExecutiveOfficerMember_lbl1" xml:lang="en-US"> Chief Executive Officer [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="srt_ChiefExecutiveOfficerMember" xlink:to="srt_ChiefExecutiveOfficerMember_lbl1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_lbl0" xml:lang="en-US"> Accumulated Other Comprehensive Income (Loss), Net of Tax </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:to="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_CashlessOptionAndWarrantExercises_lbl1" xml:lang="en-US"> Cashless Option And Warrant Exercises </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_CashlessOptionAndWarrantExercises" xlink:to="auid_CashlessOptionAndWarrantExercises_lbl1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal_lbl0" xml:lang="en-US"> Deferred Tax Assets, Operating Loss Carryforwards, State and Local </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal" xlink:to="us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock_lbl0" xml:lang="en-US"> Goodwill and Intangible Assets Disclosure [Text Block] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock" xlink:to="us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock_lbl0" xml:lang="en-US"> Schedule of Deferred Tax Assets and Liabilities [Table Text Block] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock" xlink:to="us-gaap_ScheduleOfDeferredTaxAssetsAndLiabilitiesTableTextBlock_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_UnsecuredDebt_lbl1" xml:lang="en-US"> Unsecured Debt </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_UnsecuredDebt" xlink:to="us-gaap_UnsecuredDebt_lbl1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_AmendedAmount_lbl1" xml:lang="en-US"> Amended Amount </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_AmendedAmount" xlink:to="auid_AmendedAmount_lbl1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_UnlabeledAbstract_lbl0" xml:lang="en-US"> Unlabeled Abstract </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_UnlabeledAbstract" xlink:to="auid_UnlabeledAbstract_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities_lbl0" xml:lang="en-US"> Increase (Decrease) in Other Accounts Payable and Accrued Liabilities </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities" xlink:to="us-gaap_IncreaseDecreaseInOtherAccountsPayableAndAccruedLiabilities_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_MrThimotMember_lbl1" xml:lang="en-US"> Mr Thimot Member </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_MrThimotMember" xlink:to="auid_MrThimotMember_lbl1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommonStockSharesAuthorized_lbl0" xml:lang="en-US"> Common Stock, Shares Authorized </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockSharesAuthorized" xlink:to="us-gaap_CommonStockSharesAuthorized_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_ScheduleOfCondensedCashFlowStatementTableTextBlock_lbl0" xml:lang="en-US"> Condensed Cash Flow Statement [Table Text Block] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_IssuedOfCommonStockOriginationFee_lbl1" xml:lang="en-US"> Issued Of Common Stock Origination Fee </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockIssuedDuringPeriodSharesOther_lbl0" xml:lang="en-US"> Stock Issued During Period, Shares, Other </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodSharesOther" xlink:to="us-gaap_StockIssuedDuringPeriodSharesOther_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_lbl0" xml:lang="en-US"> Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AssetsHeldInTrustNoncurrent_lbl0" xml:lang="en-US"> Asset, Held-in-Trust, Noncurrent </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsHeldInTrustNoncurrent" xlink:to="us-gaap_AssetsHeldInTrustNoncurrent_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_GoodwillAndIntangibleAssetsGoodwillPolicy_lbl0" xml:lang="en-US"> Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_GoodwillAndIntangibleAssetsGoodwillPolicy" xlink:to="us-gaap_GoodwillAndIntangibleAssetsGoodwillPolicy_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_RegisteredPublicOfferingMember_lbl0" xml:lang="en-US"> Registered Public Offering Member </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_RegisteredPublicOfferingMember" xlink:to="auid_RegisteredPublicOfferingMember_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_TwoZeroTwoThreeCommonStockTransactionsMember_lbl0" xml:lang="en-US"> Two Zero Two Three Common Stock Transactions Member </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AssetsHeldInTrustCurrent_lbl0" xml:lang="en-US"> Asset, Held-in-Trust, Current </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsHeldInTrustCurrent" xlink:to="us-gaap_AssetsHeldInTrustCurrent_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherAssets_lbl0" xml:lang="en-US"> Other Assets </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherAssets" xlink:to="us-gaap_OtherAssets_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingLeasesRentExpenseNet_lbl0" xml:lang="en-US"> Operating Leases, Rent Expense, Net </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingLeasesRentExpenseNet" xlink:to="us-gaap_OperatingLeasesRentExpenseNet_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockholdersEquity_lbl2" xml:lang="en-US"> Equity, Attributable to Parent </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockholdersEquity" xlink:to="us-gaap_StockholdersEquity_lbl2"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SubsequentEventsPolicyPolicyTextBlock_lbl0" xml:lang="en-US"> Subsequent Events, Policy [Policy Text Block] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments_lbl0" xml:lang="en-US"> Effective Income Tax Rate Reconciliation, Other Adjustments, Percent </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_AggregateGrossProceeds_lbl1" xml:lang="en-US"> Aggregate Gross Proceeds </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationOptionAndIncentivePlansPolicy_lbl0" xml:lang="en-US"> Share-Based Payment Arrangement [Policy Text Block] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RelatedPartyTransactionsDisclosureTextBlock_lbl0" xml:lang="en-US"> Related Party Transactions Disclosure [Text Block] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_UnsecuredLineOfCreditFacility_lbl1" xml:lang="en-US"> Unsecured Line Of Credit Facility </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits_lbl2" xml:lang="en-US"> Stock Issued During Period, Shares, Conversion of Units </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock_lbl0" xml:lang="en-US"> Share-Based Payment Arrangement, Option, Activity [Table Text Block] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PropertyPlantAndEquipmentPolicyTextBlock_lbl0" xml:lang="en-US"> Property, Plant and Equipment, Policy [Policy Text Block] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_TenPointZeroOneToFifteenPointZeroZeroMember_lbl0" xml:lang="en-US"> Ten Point Zero One To Fifteen Point Zero Zero Member </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentInterestRateDuringPeriod_lbl0" xml:lang="en-US"> Debt Instrument, Interest Rate During Period </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction_lbl2" xml:lang="en-US"> Sale of Stock, Number of Shares Issued in Transaction </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_PercentageOfConvertibleNotesDue_lbl1" xml:lang="en-US"> Percentage Of Convertible Notes Due </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationDepreciationAndAmortization_lbl0" xml:lang="en-US"> Disposal Group, Including Discontinued Operation, Depreciation and Amortization </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_IssuanceOfCommonStockMember_lbl0" xml:lang="en-US"> Issuance Of Common Stock Member </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LineOfCreditFacilityInterestRateDuringPeriod_lbl0" xml:lang="en-US"> Line of Credit Facility, Interest Rate During Period </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SegmentReportingDisclosureTextBlock_lbl0" xml:lang="en-US"> Segment Reporting Disclosure [Text Block] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedStockOptions_lbl0" xml:lang="en-US"> Share-Based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount </label>
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<loc xlink:type="locator" xlink:label="us-gaap_StatementOfFinancialPositionAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementOfFinancialPositionAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StatementOfFinancialPositionAbstract_lbl" xml:lang="en-US"> Statement of Financial Position [Abstract] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockIssuedDuringPeriodValueOther_lbl0" xml:lang="en-US"> Stock Issued During Period, Value, Other </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodValueOther" xlink:to="us-gaap_StockIssuedDuringPeriodValueOther_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_lbl0" xml:lang="en-US"> Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_MultiPayMember_lbl0" xml:lang="en-US"> Multi Pay Member </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentIncreaseAccruedInterest_lbl2" xml:lang="en-US"> Debt Instrument, Increase, Accrued Interest </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingLeasesRentExpenseSubleaseRentals1_lbl0" xml:lang="en-US"> Operating Leases, Rent Expense, Sublease Rentals </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SalesRevenueNetMember_lbl0" xml:lang="en-US"> Revenue Benchmark [Member] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_DisposalGroupIncludingDiscontinuedOperationIncreaseDecreaseInInventory_lbl1" xml:lang="en-US"> Disposal Group Including Discontinued Operation Increase Decrease In Inventory </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EquityMethodInvestmentAggregateCost_lbl0" xml:lang="en-US"> Equity Method Investment, Aggregate Cost </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProceedsFromIssuanceOfConvertiblePreferredStock_lbl0" xml:lang="en-US"> Proceeds from Issuance of Convertible Preferred Stock </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_StockIssuedDuringPeriodValueCashlessWarrantExercise_lbl1" xml:lang="en-US"> Stock Issued During Period Value Cashless Warrant Exercise </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_StockIssuedDuringPeriodValueCashlessWarrantExercise" xlink:to="auid_StockIssuedDuringPeriodValueCashlessWarrantExercise_lbl1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_DisposalGroupNotDiscontinuedOperationRecognizedGain_lbl1" xml:lang="en-US"> Disposal Group Not Discontinued Operation Recognized Gain </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities_lbl1" xml:lang="en-US"> Stock Issued During Period, Shares, Conversion of Convertible Securities </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_SharesIssuedInLieuOfInterest_lbl1" xml:lang="en-US"> Shares Issued In Lieu Of Interest </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PropertyPlantAndEquipmentDisclosureTextBlock_lbl0" xml:lang="en-US"> Property, Plant and Equipment Disclosure [Text Block] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProceedsFromIssuanceOfCommonStock_lbl1" xml:lang="en-US"> Proceeds from Issuance of Common Stock </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ConvertibleNotesPayableMember_lbl1" xml:lang="en-US"> Convertible Notes Payable [Member] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_CardsPlusAbstract_lbl0" xml:lang="en-US"> Cards Plus Abstract </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_DirectorMember_lbl0" xml:lang="en-US"> Director [Member] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_UnamortizedDebtIssuanceExpense_lbl0" xml:lang="en-US"> Unamortized Debt Issuance Expense </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_NumberOfNonemployeeDirectors_lbl1" xml:lang="en-US"> Number Of Nonemployee Directors </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_UnamortizedWorkingCapitalFacilityFeesCurrent_lbl1" xml:lang="en-US"> Unamortized Working Capital Facility Fees Current </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2_lbl0" xml:lang="en-US"> Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredBonusMember_lbl0" xml:lang="en-US"> Deferred Bonus [Member] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensation_lbl0" xml:lang="en-US"> Share-Based Payment Arrangement, Noncash Expense </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive_lbl0" xml:lang="en-US"> Finite-Lived Intangible Asset, Expected Amortization, after Year Five </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_lbl0" xml:lang="en-US"> Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredTaxAssetsOperatingLossCarryforwards_lbl0" xml:lang="en-US"> Deferred Tax Assets, Operating Loss Carryforwards </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_lbl0" xml:lang="en-US"> Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PropertyPlantAndEquipmentTextBlock_lbl0" xml:lang="en-US"> Property, Plant and Equipment [Table Text Block] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentTextBlock" xlink:to="us-gaap_PropertyPlantAndEquipmentTextBlock_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherCurrentAssetsTextBlock_lbl0" xml:lang="en-US"> Other Current Assets [Text Block] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredRevenue_lbl0" xml:lang="en-US"> Deferred Revenue </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl1" xml:lang="en-US"> Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:to="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_lbl0" xml:lang="en-US"> Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xlink:to="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingExpenses_lbl0" xml:lang="en-US"> Operating Expenses </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OperatingExpenses" xlink:to="us-gaap_OperatingExpenses_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LossContingencyAccrualPayments_lbl0" xml:lang="en-US"> Loss Contingency Accrual, Payments </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LossContingencyAccrualPayments" xlink:to="us-gaap_LossContingencyAccrualPayments_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ConvertibleDebtTableTextBlock_lbl0" xml:lang="en-US"> Convertible Debt [Table Text Block] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConvertibleDebtTableTextBlock" xlink:to="us-gaap_ConvertibleDebtTableTextBlock_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_AcquiredAndDevelopedSoftwareMember_lbl1" xml:lang="en-US"> Acquired And Developed Software Member </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_AcquiredAndDevelopedSoftwareMember" xlink:to="auid_AcquiredAndDevelopedSoftwareMember_lbl1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ResearchAndDevelopmentExpensePolicy_lbl0" xml:lang="en-US"> Research and Development Expense, Policy [Policy Text Block] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ResearchAndDevelopmentExpensePolicy" xlink:to="us-gaap_ResearchAndDevelopmentExpensePolicy_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PrepaidExpenseAndOtherAssets_lbl0" xml:lang="en-US"> Prepaid Expense and Other Assets </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PrepaidExpenseAndOtherAssets" xlink:to="us-gaap_PrepaidExpenseAndOtherAssets_lbl0"/>
<loc xlink:type="locator" xlink:label="auid_ScheduleOfGrantDateFairMarketValueOfOptionsGrantedAbstract" xlink:href="auid-20231231.xsd#auid_ScheduleOfGrantDateFairMarketValueOfOptionsGrantedAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_ScheduleOfGrantDateFairMarketValueOfOptionsGrantedAbstract_lbl" xml:lang="en-US"> Schedule Of Grant Date Fair Market Value Of Options Granted Abstract </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_ScheduleOfGrantDateFairMarketValueOfOptionsGrantedAbstract" xlink:to="auid_ScheduleOfGrantDateFairMarketValueOfOptionsGrantedAbstract_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherIndefiniteLivedIntangibleAssets_lbl0" xml:lang="en-US"> Other Indefinite-Lived Intangible Assets </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherIndefiniteLivedIntangibleAssets" xlink:to="us-gaap_OtherIndefiniteLivedIntangibleAssets_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipment_lbl0" xml:lang="en-US"> Disposal Group, Including Discontinued Operation, Property, Plant and Equipment </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipment" xlink:to="us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipment_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PropertyPlantAndEquipmentUsefulLife_lbl0" xml:lang="en-US"> Property, Plant and Equipment, Useful Life </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_PropertyPlantAndEquipmentUsefulLife" xlink:to="us-gaap_PropertyPlantAndEquipmentUsefulLife_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_InitialAnnualSalaryMember_lbl0" xml:lang="en-US"> Initial Annual Salary Member </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_InitialAnnualSalaryMember" xlink:to="auid_InitialAnnualSalaryMember_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredTaxAssetsValuationAllowance_lbl0" xml:lang="en-US"> Deferred Tax Assets, Valuation Allowance </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxAssetsValuationAllowance" xlink:to="us-gaap_DeferredTaxAssetsValuationAllowance_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LineOfCreditFacilityIncreaseAccruedInterest_lbl0" xml:lang="en-US"> Line of Credit Facility, Increase, Accrued Interest </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LineOfCreditFacilityIncreaseAccruedInterest" xlink:to="us-gaap_LineOfCreditFacilityIncreaseAccruedInterest_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RepaymentsOfNotesPayable_lbl0" xml:lang="en-US"> Repayments of Notes Payable </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ConversionOfStockSharesIssued1_lbl1" xml:lang="en-US"> Conversion of Stock, Shares Issued </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentConvertibleConversionPrice1_lbl0" xml:lang="en-US"> Debt Instrument, Convertible, Conversion Price </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentConvertibleConversionPrice1" xlink:to="us-gaap_DebtInstrumentConvertibleConversionPrice1_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInDeferredRevenue_lbl0" xml:lang="en-US"> Increase (Decrease) in Deferred Revenue </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInDeferredRevenue" xlink:to="us-gaap_IncreaseDecreaseInDeferredRevenue_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInAccountsReceivable_lbl1" xml:lang="en-US"> Increase (Decrease) in Accounts Receivable </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:to="us-gaap_IncreaseDecreaseInAccountsReceivable_lbl1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_GarchikMember_lbl0" xml:lang="en-US"> Garchik Member </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_GarchikMember" xlink:to="auid_GarchikMember_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_MrSellittoMember_lbl1" xml:lang="en-US"> Mr Sellitto Member </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_MrSellittoMember" xlink:to="auid_MrSellittoMember_lbl1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DepreciationAndAmortizationDiscontinuedOperations_lbl0" xml:lang="en-US"> Depreciation and Amortization, Discontinued Operations </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FinitelivedIntangibleAssetsAcquired1_lbl0" xml:lang="en-US"> Finite-Lived Intangible Assets Acquired </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherLiabilitiesCurrentAbstract_lbl0" xml:lang="en-US"> Other Liabilities, Current [Abstract] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_StockIssuedDuringPeriodValueIssuedForServicesTotalPaid_lbl1" xml:lang="en-US"> Stock Issued During Period Value Issued For Services Total Paid </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ResearchAndDevelopmentExpense_lbl0" xml:lang="en-US"> Research and Development Expense </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_Liabilities_lbl0" xml:lang="en-US"> Liabilities </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Liabilities" xlink:to="us-gaap_Liabilities_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ConvertibleNotesPayable_lbl0" xml:lang="en-US"> Convertible Notes Payable </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConvertibleNotesPayable" xlink:to="us-gaap_ConvertibleNotesPayable_lbl0"/>
<loc xlink:type="locator" xlink:label="us-gaap_StatementOfStockholdersEquityAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementOfStockholdersEquityAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StatementOfStockholdersEquityAbstract_lbl" xml:lang="en-US"> Statement of Stockholders' Equity [Abstract] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_FivePointZeroOneToTenPointZeroZeroMember_lbl0" xml:lang="en-US"> Five Point Zero One To Ten Point Zero Zero Member </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_FivePointZeroOneToTenPointZeroZeroMember" xlink:to="auid_FivePointZeroOneToTenPointZeroZeroMember_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfIncomeBeforeIncomeTaxDomesticAndForeignTableTextBlock_lbl0" xml:lang="en-US"> Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues_lbl0" xml:lang="en-US"> Stock Issued During Period, Value, New Issues </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:to="us-gaap_StockIssuedDuringPeriodValueNewIssues_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_SharesOfCommonStockExchanged_lbl1" xml:lang="en-US"> Shares Of Common Stock Exchanged </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_SharesOfCommonStockExchanged" xlink:to="auid_SharesOfCommonStockExchanged_lbl1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_InternationalCustomersMember_lbl0" xml:lang="en-US"> International Customers Member </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_InternationalCustomersMember" xlink:to="auid_InternationalCustomersMember_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_ConversionExpense_lbl2" xml:lang="en-US"> Conversion Expense </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_ConversionExpense" xlink:to="auid_ConversionExpense_lbl2"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommitmentsAndContingencies_lbl0" xml:lang="en-US"> Commitments and Contingencies </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommitmentsAndContingencies" xlink:to="us-gaap_CommitmentsAndContingencies_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive_lbl0" xml:lang="en-US"> Finite-Lived Intangible Asset, Expected Amortization, Year Five </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_NonCash_lbl1" xml:lang="en-US"> Non Cash </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_NonCash" xlink:to="auid_NonCash_lbl1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_ExcessInsuredAmountsFederalDepositoryCorporation_lbl1" xml:lang="en-US"> Excess Insured Amounts Federal Depository Corporation </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_ExcessInsuredAmountsFederalDepositoryCorporation" xlink:to="auid_ExcessInsuredAmountsFederalDepositoryCorporation_lbl1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredTaxAssetsNet_lbl0" xml:lang="en-US"> Deferred Tax Assets, Net of Valuation Allowance </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxAssetsNet" xlink:to="us-gaap_DeferredTaxAssetsNet_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_lbl2" xml:lang="en-US"> Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_lbl0" xml:lang="en-US"> Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Dividend Rate </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_ConversionOfConvertibleNotesToCommonStock_lbl1" xml:lang="en-US"> Conversion Of Convertible Notes To Common Stock </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_ConversionOfConvertibleNotesToCommonStock" xlink:to="auid_ConversionOfConvertibleNotesToCommonStock_lbl1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommonStockValue_lbl1" xml:lang="en-US"> Common Stock, Value, Issued </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockValue" xlink:to="us-gaap_CommonStockValue_lbl1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RevolvingCreditFacilityMember_lbl1" xml:lang="en-US"> Revolving Credit Facility [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RevolvingCreditFacilityMember" xlink:to="us-gaap_RevolvingCreditFacilityMember_lbl1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_TPGMember_lbl0" xml:lang="en-US"> TPGMember </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_TPGMember" xlink:to="auid_TPGMember_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_MrTrelinMember_lbl0" xml:lang="en-US"> Mr Trelin Member </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_MrTrelinMember" xlink:to="auid_MrTrelinMember_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ContractWithCustomerLiability_lbl0" xml:lang="en-US"> Contract with Customer, Liability </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ContractWithCustomerLiability" xlink:to="us-gaap_ContractWithCustomerLiability_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsDomestic_lbl0" xml:lang="en-US"> Deferred Tax Assets, Operating Loss Carryforwards, Domestic </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsDomestic" xlink:to="us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsDomestic_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_StockBasedCompensationCommonStockValue_lbl1" xml:lang="en-US"> Stock Based Compensation Common Stock Value </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_StockBasedCompensationCommonStockValue" xlink:to="auid_StockBasedCompensationCommonStockValue_lbl1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl0" xml:lang="en-US"> Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Continuing Operations </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:to="us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfDisposalGroupsIncludingDiscontinuedOperationsIncomeStatementBalanceSheetAndAdditionalDisclosuresTextBlock_lbl0" xml:lang="en-US"> Disposal Groups, Including Discontinued Operations [Table Text Block] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfDisposalGroupsIncludingDiscontinuedOperationsIncomeStatementBalanceSheetAndAdditionalDisclosuresTextBlock" xlink:to="us-gaap_ScheduleOfDisposalGroupsIncludingDiscontinuedOperationsIncomeStatementBalanceSheetAndAdditionalDisclosuresTextBlock_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock_lbl0" xml:lang="en-US"> Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock" xlink:to="us-gaap_ScheduleofFiniteLivedIntangibleAssetsFutureAmortizationExpenseTableTextBlock_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercised_lbl0" xml:lang="en-US"> Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Exercised </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercised" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercised_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_lbl0" xml:lang="en-US"> Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1" xlink:to="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_DisposalGroupIncludingDiscontinuedOperationNonoperatingIncomeexpenseNet_lbl1" xml:lang="en-US"> Disposal Group Including Discontinued Operation Nonoperating Incomeexpense Net </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CashAndDueFromBanks_lbl0" xml:lang="en-US"> Cash and Due from Banks </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashAndDueFromBanks" xlink:to="us-gaap_CashAndDueFromBanks_lbl0"/>
<loc xlink:type="locator" xlink:label="auid_ScheduleOfOperationsOfCardsPlusAndMultipayAbstract" xlink:href="auid-20231231.xsd#auid_ScheduleOfOperationsOfCardsPlusAndMultipayAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_ScheduleOfOperationsOfCardsPlusAndMultipayAbstract_lbl" xml:lang="en-US"> Schedule Of Operations Of Cards Plus And Multipay Abstract </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_ScheduleOfOperationsOfCardsPlusAndMultipayAbstract" xlink:to="auid_ScheduleOfOperationsOfCardsPlusAndMultipayAbstract_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_Assets_lbl0" xml:lang="en-US"> Assets </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Assets" xlink:to="us-gaap_Assets_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProceedsFromWarrantExercises_lbl0" xml:lang="en-US"> Proceeds from Warrant Exercises </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ProceedsFromWarrantExercises" xlink:to="us-gaap_ProceedsFromWarrantExercises_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RevenuesAbstract_lbl0" xml:lang="en-US"> Revenues [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RevenuesAbstract" xlink:to="us-gaap_RevenuesAbstract_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_OfficerMember_lbl0" xml:lang="en-US"> Officer [Member] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts_lbl0" xml:lang="en-US"> Deferred Tax Asset, Tax Deferred Expense, Reserve and Accrual, Accounts Receivable, Allowance for Credit Loss </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts" xlink:to="us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockIssuedDuringPeriodValueAcquisitions_lbl0" xml:lang="en-US"> Stock Issued During Period, Value, Acquisitions </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_StockIssuedDuringPeriodValueAcquisitions" xlink:to="us-gaap_StockIssuedDuringPeriodValueAcquisitions_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccountsPayableCurrentAndNoncurrent_lbl0" xml:lang="en-US"> Accounts Payable </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountsPayableCurrentAndNoncurrent" xlink:to="us-gaap_AccountsPayableCurrentAndNoncurrent_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_InducementGrantPlanMember_lbl0" xml:lang="en-US"> Inducement Grant Plan Member </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_InducementGrantPlanMember" xlink:to="auid_InducementGrantPlanMember_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AssetsHeldForSaleNotPartOfDisposalGroupCurrentOther_lbl0" xml:lang="en-US"> Asset, Held-for-Sale, Not Part of Disposal Group, Other, Current </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AssetsHeldForSaleNotPartOfDisposalGroupCurrentOther" xlink:to="us-gaap_AssetsHeldForSaleNotPartOfDisposalGroupCurrentOther_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccountsReceivableMember_lbl0" xml:lang="en-US"> Accounts Receivable [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountsReceivableMember" xlink:to="us-gaap_AccountsReceivableMember_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_SternTrustMember_lbl0" xml:lang="en-US"> Stern Trust Member </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_SternTrustMember" xlink:to="auid_SternTrustMember_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredRevenueCurrent_lbl0" xml:lang="en-US"> Deferred Revenue, Current </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredRevenueCurrent" xlink:to="us-gaap_DeferredRevenueCurrent_lbl0"/>
<loc xlink:type="locator" xlink:label="auid_ScheduleOfCompanySWarrantActivityAbstract" xlink:href="auid-20231231.xsd#auid_ScheduleOfCompanySWarrantActivityAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_ScheduleOfCompanySWarrantActivityAbstract_lbl" xml:lang="en-US"> Schedule Of Company SWarrant Activity Abstract </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_ScheduleOfCompanySWarrantActivityAbstract" xlink:to="auid_ScheduleOfCompanySWarrantActivityAbstract_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_CommonStockForWorkingCapitalFacility_lbl1" xml:lang="en-US"> Common Stock For Working Capital Facility </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_CommonStockForWorkingCapitalFacility" xlink:to="auid_CommonStockForWorkingCapitalFacility_lbl1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AmortizationOfIntangibleAssets_lbl0" xml:lang="en-US"> Amortization of Intangible Assets </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AmortizationOfIntangibleAssets" xlink:to="us-gaap_AmortizationOfIntangibleAssets_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeTaxesPaidNet_lbl0" xml:lang="en-US"> Income Taxes Paid, Net </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeTaxesPaidNet" xlink:to="us-gaap_IncomeTaxesPaidNet_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeTaxExpenseBenefit_lbl0" xml:lang="en-US"> Income Tax Expense (Benefit) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeTaxExpenseBenefit" xlink:to="us-gaap_IncomeTaxExpenseBenefit_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_UseOfEstimates_lbl0" xml:lang="en-US"> Use of Estimates, Policy [Policy Text Block] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_UseOfEstimates" xlink:to="us-gaap_UseOfEstimates_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsDisposalGroupIncludingDiscontinuedOperations_lbl1" xml:lang="en-US"> Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Disposal Group, Including Discontinued Operations </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsDisposalGroupIncludingDiscontinuedOperations" xlink:to="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsDisposalGroupIncludingDiscontinuedOperations_lbl1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_ChangesInOperatingAssetsAndLiabilitiesAbstract_lbl0" xml:lang="en-US"> Changes In Operating Assets And Liabilities Abstract </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_ChangesInOperatingAssetsAndLiabilitiesAbstract" xlink:to="auid_ChangesInOperatingAssetsAndLiabilitiesAbstract_lbl0"/>
<loc xlink:type="locator" xlink:label="us-gaap_IncomeStatementAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeStatementAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeStatementAbstract_lbl" xml:lang="en-US"> Income Statement [Abstract] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeStatementAbstract" xlink:to="us-gaap_IncomeStatementAbstract_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_DisposalGroupIncludingDiscontinuedOperationImpairmentLoss_lbl1" xml:lang="en-US"> Disposal Group Including Discontinued Operation Impairment Loss </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_DisposalGroupIncludingDiscontinuedOperationImpairmentLoss" xlink:to="auid_DisposalGroupIncludingDiscontinuedOperationImpairmentLoss_lbl1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes_lbl0" xml:lang="en-US"> Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes" xlink:to="us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2_lbl0" xml:lang="en-US"> Share-Based Payment Arrangement, Option, Exercise Price Range, Outstanding, Weighted Average Remaining Contractual Term </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2" xlink:to="us-gaap_SharebasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsWeightedAverageRemainingContractualTerm2_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_EstimatedGrantDateFairValue_lbl1" xml:lang="en-US"> Estimated Grant Date Fair Value </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_EstimatedGrantDateFairValue" xlink:to="auid_EstimatedGrantDateFairValue_lbl1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss_lbl0" xml:lang="en-US"> Disposal Group, Including Discontinued Operation, Operating Income (Loss) </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RevenueRemainingPerformanceObligation_lbl0" xml:lang="en-US"> Revenue, Remaining Performance Obligation, Amount </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_RevenueRemainingPerformanceObligation" xlink:to="us-gaap_RevenueRemainingPerformanceObligation_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax_lbl0" xml:lang="en-US"> Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeLowerRangeLimit_lbl0" xml:lang="en-US"> Share-Based Payment Arrangement, Option, Exercise Price Range, Lower Range Limit </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_AggregateAmount_lbl1" xml:lang="en-US"> Aggregate Amount </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AmortizationOfFinancingCostsAndDiscounts_lbl0" xml:lang="en-US"> Amortization of Debt Issuance Costs and Discounts </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AmortizationOfFinancingCostsAndDiscounts" xlink:to="us-gaap_AmortizationOfFinancingCostsAndDiscounts_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_WarrantsAndRightsOutstandingTerm_lbl0" xml:lang="en-US"> Warrants and Rights Outstanding, Term </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalConvertibleDebtWithConversionFeature_lbl0" xml:lang="en-US"> Adjustments to Additional Paid in Capital, Convertible Debt with Conversion Feature </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_DisposalGroupIncludingDiscontinuedOperationIncreaseDecreaseInAccountsPayableAndAccruedLiabilities_lbl1" xml:lang="en-US"> Disposal Group Including Discontinued Operation Increase Decrease In Accounts Payable And Accrued Liabilities </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInOtherAccruedLiabilities_lbl0" xml:lang="en-US"> Increase (Decrease) in Other Accrued Liabilities </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInOtherAccruedLiabilities" xlink:to="us-gaap_IncreaseDecreaseInOtherAccruedLiabilities_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockOptionExercisePriceIncrease_lbl0" xml:lang="en-US"> Stock Option, Exercise Price, Increase </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredFinanceCostsNet_lbl1" xml:lang="en-US"> Debt Issuance Costs, Net </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredFinanceCostsNet" xlink:to="us-gaap_DeferredFinanceCostsNet_lbl1"/>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber_lbl0" xml:lang="en-US"> Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EmployeeStockOwnershipPlanESOPPlanDescription_lbl0" xml:lang="en-US"> Employee Stock Ownership Plan (ESOP), Plan Description </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableWeightedAverageExercisePrice_lbl0" xml:lang="en-US"> Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Exercisable, Weighted Average Exercise Price </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommonStockMember_lbl1" xml:lang="en-US"> Common Stock [Member] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PropertyPlantAndEquipmentGross_lbl0" xml:lang="en-US"> Property, Plant and Equipment, Gross </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentInterestRateStatedPercentage_lbl0" xml:lang="en-US"> Debt Instrument, Interest Rate, Stated Percentage </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AdjustmentOfWarrantsGrantedForServices_lbl0" xml:lang="en-US"> Adjustment of Warrants Granted for Services </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_SaleOfCardPlus_lbl1" xml:lang="en-US"> Sale Of Card Plus </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FiniteLivedIntangibleAssetUsefulLife_lbl0" xml:lang="en-US"> Finite-Lived Intangible Asset, Useful Life </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfEffectiveIncomeTaxRateReconciliationTableTextBlock_lbl0" xml:lang="en-US"> Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_TwoThousandTwentyThreeStockOptionIssuancesMember_lbl0" xml:lang="en-US"> Two Thousand Twenty Three Stock Option Issuances Member </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_CardsPlusMember_lbl0" xml:lang="en-US"> Cards Plus Member </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_lbl0" xml:lang="en-US"> Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_MadisonIIILLCMember_lbl0" xml:lang="en-US"> Madison IIILLCMember </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_ChiefTechnologyOfficerMember_lbl0" xml:lang="en-US"> Chief Technology Officer Member </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SaleOfStockConsiderationReceivedOnTransaction_lbl0" xml:lang="en-US"> Sale of Stock, Consideration Received on Transaction </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AdditionalPaidInCapitalCommonStock_lbl0" xml:lang="en-US"> Additional Paid in Capital, Common Stock </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsForeign_lbl0" xml:lang="en-US"> Deferred Tax Assets, Tax Credit Carryforwards, Foreign </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProvisionForDoubtfulAccounts_lbl0" xml:lang="en-US"> Accounts Receivable, Credit Loss Expense (Reversal) </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_lbl0" xml:lang="en-US"> Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ConversionOfStockSharesConverted1_lbl0" xml:lang="en-US"> Conversion of Stock, Shares Converted </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue_lbl0" xml:lang="en-US"> Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period, Intrinsic Value </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationTaxCredits_lbl0" xml:lang="en-US"> Effective Income Tax Rate Reconciliation, Tax Credit, Percent </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DiscontinuedOperationAmountOfContinuingCashFlowsAfterDisposal_lbl0" xml:lang="en-US"> Discontinued Operation, Amount of Continuing Cash Flows after Disposal </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_OriginalFacilityAgreementMember_lbl0" xml:lang="en-US"> Original Facility Agreement Member </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareholdersEquityAndShareBasedPaymentsTextBlock_lbl0" xml:lang="en-US"> Shareholders' Equity and Share-Based Payments [Text Block] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_lbl0" xml:lang="en-US"> Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_lbl0"/>
<loc xlink:type="locator" xlink:label="us-gaap_LongtermConvertibleDebtCurrentAndNoncurrentAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongtermConvertibleDebtCurrentAndNoncurrentAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LongtermConvertibleDebtCurrentAndNoncurrentAbstract_lbl" xml:lang="en-US"> Convertible Debt [Abstract] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_AdjustmentsToReconcileNetLossWithCashFlowsFromOperationsAbstract_lbl0" xml:lang="en-US"> Adjustments To Reconcile Net Loss With Cash Flows From Operations Abstract </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NoteWarrantMember_lbl0" xml:lang="en-US"> Note Warrant [Member] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_PIPEInvestorsMember_lbl0" xml:lang="en-US"> PIPEInvestors Member </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInOperatingActivities_lbl1" xml:lang="en-US"> Net Cash Provided by (Used in) Operating Activities </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInFinancingActivities_lbl0" xml:lang="en-US"> Net Cash Provided by (Used in) Financing Activities </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_DisposalGroupIncludingDiscontinuedOperatioNetConsideration_lbl1" xml:lang="en-US"> Disposal Group Including Discontinued Operatio Net Consideration </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_CustomersTwoMember_lbl0" xml:lang="en-US"> Customers Two Member </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent_lbl0" xml:lang="en-US"> Disposal Group, Including Discontinued Operation, Assets, Current </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfShareBasedCompensationSharesAuthorizedUnderStockOptionPlansByExercisePriceRangeTextBlock_lbl0" xml:lang="en-US"> Share-Based Payment Arrangement, Option, Exercise Price Range [Table Text Block] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_ConvertibleNotesMember_lbl1" xml:lang="en-US"> Convertible Notes Member </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AssetsHeldForSaleNotPartOfDisposalGroupCurrent_lbl0" xml:lang="en-US"> Asset, Held-for-Sale, Not Part of Disposal Group, Current </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax_lbl0" xml:lang="en-US"> Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InducedConversionOfConvertibleDebtExpense_lbl1" xml:lang="en-US"> Induced Conversion of Convertible Debt Expense </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfOtherAssetsTableTextBlock_lbl0" xml:lang="en-US"> Schedule of Other Assets [Table Text Block] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredTaxAssetsCapitalLossCarryforwards_lbl0" xml:lang="en-US"> Deferred Tax Assets, Capital Loss Carryforwards </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SaleOfStockPricePerShare_lbl0" xml:lang="en-US"> Sale of Stock, Price Per Share </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InvestmentOwnedBalancePrincipalAmount_lbl0" xml:lang="en-US"> Investment Owned, Balance, Principal Amount </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SubsequentEventMember_lbl0" xml:lang="en-US"> Subsequent Event [Member] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_WarrantMember_lbl0" xml:lang="en-US"> Warrant [Member] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_lbl0" xml:lang="en-US"> Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsAggregateIntrinsicValueForfeitedcancelled_lbl1" xml:lang="en-US"> Sharebased Compensation Arrangement By Sharebased Payment Award Options Aggregate Intrinsic Value Forfeitedcancelled </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PaymentsForRent_lbl0" xml:lang="en-US"> Payments for Rent </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_ChangesInOperatingAssetsAndLiabilitiesAbstract0_lbl0" xml:lang="en-US"> Changes In Operating Assets And Liabilities Abstract0 </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_GoingConcernPolicyTextBlock_lbl1" xml:lang="en-US"> Going Concern Policy Text Block </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_RepaymentsOfConvertibleDebt_lbl0" xml:lang="en-US"> Repayments of Convertible Debt </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_ChiefFinancialOfficerMember_lbl0" xml:lang="en-US"> Chief Financial Officer [Member] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_MadisonGlobalPartnersLLCMember_lbl0" xml:lang="en-US"> Madison Global Partners LLCMember </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_DisposalGroupIncludingDiscontinuedOperationLessValueAddedTax_lbl1" xml:lang="en-US"> Disposal Group Including Discontinued Operation Less Value Added Tax </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OperatingIncomeLoss_lbl0" xml:lang="en-US"> Operating Income (Loss) </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EquityMethodInvestmentOwnershipPercentage_lbl0" xml:lang="en-US"> Equity Method Investment, Ownership Percentage </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_TwentyPointZeroOneToOneHundredTwentyOnePointTwoEightMember_lbl0" xml:lang="en-US"> Twenty Point Zero One To One Hundred Twenty One Point Two Eight Member </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ForeignCurrencyTransactionsAndTranslationsPolicyTextBlock_lbl0" xml:lang="en-US"> Foreign Currency Transactions and Translations Policy [Policy Text Block] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InterestPaidDiscontinuedOperations_lbl0" xml:lang="en-US"> Interest Paid, Discontinued Operations </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued_lbl0" xml:lang="en-US"> Adjustments to Additional Paid in Capital, Warrant Issued </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_SettlementOfAccountsPayableWithIssuanceOfCommonStock_lbl1" xml:lang="en-US"> Settlement Of Accounts Payable With Issuance Of Common Stock </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInContractWithCustomerLiability_lbl0" xml:lang="en-US"> Increase (Decrease) in Contract with Customer, Liability </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue_lbl0" xml:lang="en-US"> Disposal Group, Including Discontinued Operation, Revenue </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_ConversionOfCreditFacilityBorrowingsIntoCommonStock_lbl1" xml:lang="en-US"> Conversion Of Credit Facility Borrowings Into Common Stock </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTextBlock_lbl0" xml:lang="en-US"> Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LiabilitiesCurrentAbstract_lbl0" xml:lang="en-US"> Liabilities, Current [Abstract] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentPeriodicPaymentInterest_lbl0" xml:lang="en-US"> Debt Instrument, Periodic Payment, Interest </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_DisposalGroupIncludingDiscontinuedOperationIncreaseDecreaseInAccountsReceivable_lbl1" xml:lang="en-US"> Disposal Group Including Discontinued Operation Increase Decrease In Accounts Receivable </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockIssuedDuringPeriodValueIssuedForServices_lbl0" xml:lang="en-US"> Stock Issued During Period, Value, Issued for Services </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsExercisedWeightedAverageRemainingContractualTerm_lbl1" xml:lang="en-US"> Share Based Compensation Arrangement By Share Based Payment Award Non Option Equity Instruments Exercised Weighted Average Remaining Contractual Term </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_MsPhamMember_lbl0" xml:lang="en-US"> Ms Pham Member </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DepreciationDepletionAndAmortization_lbl0" xml:lang="en-US"> Depreciation, Depletion and Amortization </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_lbl0" xml:lang="en-US"> Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InsuranceRecoveries_lbl0" xml:lang="en-US"> Insurance Recoveries </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantInPeriodGrantDateIntrinsicValue_lbl1" xml:lang="en-US"> Share Based Compensation Arrangement By Share Based Payment Award Options Grant In Period Grant Date Intrinsic Value </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherAssetsCurrent_lbl1" xml:lang="en-US"> Other Assets, Current </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentAnnualPrincipalPayment_lbl0" xml:lang="en-US"> Debt Instrument, Annual Principal Payment </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_LegacyAuthenticationServicesMember_lbl0" xml:lang="en-US"> Legacy Authentication Services Member </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation_lbl0" xml:lang="en-US"> Discontinued Operation, Tax Effect of Discontinued Operation </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccountsReceivableSale_lbl0" xml:lang="en-US"> Accounts Receivable, Sale </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_MrDaguroMember_lbl0" xml:lang="en-US"> Mr Daguro Member </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_CardsPlusBusinessInSouthAfricaMember_lbl0" xml:lang="en-US"> Cards Plus Business In South Africa Member </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SaleLeasebackTransactionMonthlyRentalPayments_lbl0" xml:lang="en-US"> Sale Leaseback Transaction, Monthly Rental Payments </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IntangibleAssetsFiniteLivedPolicy_lbl0" xml:lang="en-US"> Intangible Assets, Finite-Lived, Policy [Policy Text Block] </label>
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<loc xlink:type="locator" xlink:label="us-gaap_StatementOfCashFlowsAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementOfCashFlowsAbstract"/>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_InterestExpense_lbl0" xml:lang="en-US"> Interest Expense </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedNumberOfShares_lbl0" xml:lang="en-US"> Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested, Number of Shares </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare_lbl0" xml:lang="en-US"> Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LossOnContractTermination_lbl0" xml:lang="en-US"> Loss on Contract Termination </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeTaxDisclosureTextBlock_lbl0" xml:lang="en-US"> Income Tax Disclosure [Text Block] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_DisposalGroupIncludingDiscontinuedOperationIncreaseDecreaseInOtherCurrentAssets_lbl1" xml:lang="en-US"> Disposal Group Including Discontinued Operation Increase Decrease In Other Current Assets </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax_lbl2" xml:lang="en-US"> Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_CustomerThreeMember_lbl0" xml:lang="en-US"> Customer Three Member </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockIssuedDuringPeriodValueConversionOfUnits_lbl0" xml:lang="en-US"> Stock Issued During Period, Value, Conversion of Units </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGrantedWeightedAverageRemainingContractualTerm_lbl1" xml:lang="en-US"> Share Based Compensation Arrangement By Share Based Payment Award Non Option Equity Instruments Granted Weighted Average Remaining Contractual Term </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_MsJacquelineWhiteMember_lbl0" xml:lang="en-US"> Ms Jacqueline White Member </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LiabilitiesAndStockholdersEquityAbstract_lbl0" xml:lang="en-US"> Liabilities and Equity [Abstract] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_lbl1" xml:lang="en-US"> Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber_lbl0" xml:lang="en-US"> Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Outstanding, Number </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockIssuedDuringPeriodValueConversionOfConvertibleSecurities_lbl0" xml:lang="en-US"> Stock Issued During Period, Value, Conversion of Convertible Securities </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_TwoThousandTwentyTwoCommonStockTransactionsMember_lbl0" xml:lang="en-US"> Two Thousand Twenty Two Common Stock Transactions Member </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised_lbl0" xml:lang="en-US"> Stock Issued During Period, Value, Stock Options Exercised </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccountsPayableAndAccruedLiabilitiesCurrent_lbl1" xml:lang="en-US"> Accounts Payable and Accrued Liabilities, Current </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_MarketingAndAdvertisingExpense_lbl0" xml:lang="en-US"> Marketing and Advertising Expense </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AssetsCurrentAbstract_lbl0" xml:lang="en-US"> Assets, Current [Abstract] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare_lbl0" xml:lang="en-US"> Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EarningsPerShareAbstract_lbl0" xml:lang="en-US"> Earnings Per Share [Abstract] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ConcentrationRiskPercentage1_lbl0" xml:lang="en-US"> Concentration Risk, Percentage </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ConcentrationRiskPercentage1" xlink:to="us-gaap_ConcentrationRiskPercentage1_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_lbl0" xml:lang="en-US"> Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" xlink:to="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AdvertisingCostsPolicyTextBlock_lbl0" xml:lang="en-US"> Advertising Cost [Policy Text Block] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EarningsPerSharePolicyTextBlock_lbl0" xml:lang="en-US"> Earnings Per Share, Policy [Policy Text Block] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted_lbl0" xml:lang="en-US"> Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Granted </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_IncomeTaxesDiscontinuedOperations_lbl1" xml:lang="en-US"> Income Taxes Discontinued Operations </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_NetCashProvidedByUsedInDiscontinuedOperations_lbl0" xml:lang="en-US"> Net Cash Provided by (Used in) Discontinued Operations </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SaleOfStockConsiderationReceivedPerTransaction_lbl0" xml:lang="en-US"> Sale of Stock, Consideration Received Per Transaction </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SaleOfStockConsiderationReceivedPerTransaction" xlink:to="us-gaap_SaleOfStockConsiderationReceivedPerTransaction_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsWeightedAverageContractualLifeExercised_lbl1" xml:lang="en-US"> Sharebased Compensation Arrangement By Sharebased Payment Award Options Weighted Average Contractual Life Exercised </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsWeightedAverageContractualLifeExercised" xlink:to="auid_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsWeightedAverageContractualLifeExercised_lbl1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SupplementalCashFlowElementsAbstract_lbl0" xml:lang="en-US"> Supplemental Cash Flow Elements [Abstract] </label>
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<loc xlink:type="locator" xlink:label="auid_ScheduleOfDiscontinuedOperationsAssetsHeldForSaleCriteriaForCardsPlusAndTheMultipayOperationsAbstract" xlink:href="auid-20231231.xsd#auid_ScheduleOfDiscontinuedOperationsAssetsHeldForSaleCriteriaForCardsPlusAndTheMultipayOperationsAbstract"/>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherPrepaidExpenseCurrent_lbl0" xml:lang="en-US"> Other Prepaid Expense, Current </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ClassOfWarrantOrRightOutstanding_lbl0" xml:lang="en-US"> Class of Warrant or Right, Outstanding </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_OtherLiabilitiesCurrent_lbl0" xml:lang="en-US"> Other Liabilities, Current </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_OtherLiabilitiesCurrent" xlink:to="us-gaap_OtherLiabilitiesCurrent_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_StockIssuedDuringPeriodShareConversionOfCreditFacilityBorrowingsIntoCommonStockinShares_lbl1" xml:lang="en-US"> Stock Issued During Period Share Conversion Of Credit Facility Borrowings Into Common Stockin Shares </label>
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<loc xlink:type="locator" xlink:label="us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_lbl" xml:lang="en-US"> Statement of Comprehensive Income [Abstract] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_Revenues_lbl1" xml:lang="en-US"> Revenues </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_StockIssuedDuringPeriodSharesCommonStockIssuedWithConvertibleDebtin_lbl1" xml:lang="en-US"> Stock Issued During Period Shares Common Stock Issued With Convertible Debtin </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity_lbl0" xml:lang="en-US"> Liabilities and Equity </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_GoodwillForeignCurrencyTranslationGainLoss_lbl0" xml:lang="en-US"> Goodwill, Foreign Currency Translation Gain (Loss) </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsPayableAndAccruedLiabilities_lbl0" xml:lang="en-US"> Disposal Group, Including Discontinued Operation, Accounts Payable and Accrued Liabilities </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_GeneralAndAdministrativeExpense_lbl0" xml:lang="en-US"> General and Administrative Expense </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_ARFacilityAgreementMember_lbl1" xml:lang="en-US"> ARFacility Agreement Member </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_MultiPayAbstract_lbl1" xml:lang="en-US"> Multi Pay Abstract </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredTaxAssetsGoodwillAndIntangibleAssets_lbl0" xml:lang="en-US"> Deferred Tax Assets, Goodwill and Intangible Assets </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LiabilitiesCurrent_lbl0" xml:lang="en-US"> Liabilities, Current </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationTaxCreditsResearch_lbl0" xml:lang="en-US"> Effective Income Tax Rate Reconciliation, Tax Credit, Research, Percent </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationPropertyPlantAndEquipmentCurrent_lbl0" xml:lang="en-US"> Disposal Group, Including Discontinued Operation, Property, Plant and Equipment, Current </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour_lbl0" xml:lang="en-US"> Finite-Lived Intangible Asset, Expected Amortization, Year Four </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_ScheduleOfCondensedIncomeStatementTableTextBlock_lbl0" xml:lang="en-US"> Condensed Income Statement [Table Text Block] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AssetsCurrent_lbl0" xml:lang="en-US"> Assets, Current </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ProceedsFromDebtNetOfIssuanceCosts_lbl0" xml:lang="en-US"> Proceeds from Debt, Net of Issuance Costs </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_lbl0" xml:lang="en-US"> Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" xlink:to="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_PerformanceBasedAndMarketBasedOptions_lbl1" xml:lang="en-US"> Performance Based And Market Based Options </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_AchievingIncrementsMember_lbl0" xml:lang="en-US"> Achieving Increments Member </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommonStockSharesIssued_lbl2" xml:lang="en-US"> Common Stock, Shares, Issued </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CommonStockSharesIssued" xlink:to="us-gaap_CommonStockSharesIssued_lbl2"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_lbl0" xml:lang="en-US"> Class of Warrant or Right, Exercise Price of Warrants or Rights </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl0" xml:lang="en-US"> Weighted Average Number of Shares Outstanding, Diluted </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:to="us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsNotesAndLoansReceivableNet_lbl0" xml:lang="en-US"> Disposal Group, Including Discontinued Operation, Accounts, Notes and Loans Receivable, Net </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_MultiPayBusinessInColombiaMember_lbl0" xml:lang="en-US"> Multi Pay Business In Colombia Member </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IntangibleAssetsNetExcludingGoodwill_lbl0" xml:lang="en-US"> Intangible Assets, Net (Excluding Goodwill) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IntangibleAssetsNetExcludingGoodwill" xlink:to="us-gaap_IntangibleAssetsNetExcludingGoodwill_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingWeightedAverageRemainingContractualTerm_lbl1" xml:lang="en-US"> Share Based Compensation Arrangement By Share Based Payment Award Non Option Equity Instruments Outstanding Weighted Average Remaining Contractual Term </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingWeightedAverageRemainingContractualTerm" xlink:to="auid_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingWeightedAverageRemainingContractualTerm_lbl1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfShareBasedPaymentAwardStockOptionsValuationAssumptionsTableTextBlock_lbl0" xml:lang="en-US"> Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeLossFromContinuingOperations_lbl1" xml:lang="en-US"> Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_CashFlowsFromOperatingActivitiesAbstract_lbl0" xml:lang="en-US"> Cash Flows From Operating Activities Abstract </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_CashFlowsFromOperatingActivitiesAbstract" xlink:to="auid_CashFlowsFromOperatingActivitiesAbstract_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_lbl0" xml:lang="en-US"> Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_TwoPointSixFourToFivePointZeroZeroMember_lbl0" xml:lang="en-US"> Two Point Six Four To Five Point Zero Zero Member </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_TwoPointSixFourToFivePointZeroZeroMember" xlink:to="auid_TwoPointSixFourToFivePointZeroZeroMember_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CashFDICInsuredAmount_lbl0" xml:lang="en-US"> Cash, FDIC Insured Amount </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CashFDICInsuredAmount" xlink:to="us-gaap_CashFDICInsuredAmount_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AccountsReceivableNetCurrent_lbl0" xml:lang="en-US"> Accounts Receivable, after Allowance for Credit Loss, Current </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_AccountsReceivableNetCurrent" xlink:to="us-gaap_AccountsReceivableNetCurrent_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance_lbl0" xml:lang="en-US"> Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance" xlink:to="us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign_lbl0" xml:lang="en-US"> Income (Loss) from Continuing Operations before Income Taxes, Foreign </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign" xlink:to="us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsWeightedAverageContractualLifeForfeitedcancelled_lbl1" xml:lang="en-US"> Sharebased Compensation Arrangement By Sharebased Payment Award Options Weighted Average Contractual Life Forfeitedcancelled </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsWeightedAverageContractualLifeForfeitedcancelled" xlink:to="auid_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsWeightedAverageContractualLifeForfeitedcancelled_lbl1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentMaturityDate_lbl0" xml:lang="en-US"> Debt Instrument, Maturity Date </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentMaturityDate" xlink:to="us-gaap_DebtInstrumentMaturityDate_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_AccruedSeveranceLiability_lbl1" xml:lang="en-US"> Accrued Severance Liability </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_AccruedSeveranceLiability" xlink:to="auid_AccruedSeveranceLiability_lbl1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_MrGarchikMember_lbl0" xml:lang="en-US"> Mr Garchik Member </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_MrGarchikMember" xlink:to="auid_MrGarchikMember_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DebtInstrumentConvertibleIfConvertedValueInExcessOfPrincipal_lbl0" xml:lang="en-US"> Debt Instrument, Convertible, If-converted Value in Excess of Principal </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DebtInstrumentConvertibleIfConvertedValueInExcessOfPrincipal" xlink:to="us-gaap_DebtInstrumentConvertibleIfConvertedValueInExcessOfPrincipal_lbl0"/>
<loc xlink:type="locator" xlink:label="auid_ScheduleOfStockOptionInformationAbstract" xlink:href="auid-20231231.xsd#auid_ScheduleOfStockOptionInformationAbstract"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_ScheduleOfStockOptionInformationAbstract_lbl" xml:lang="en-US"> Schedule Of Stock Option Information Abstract </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_ScheduleOfStockOptionInformationAbstract" xlink:to="auid_ScheduleOfStockOptionInformationAbstract_lbl"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_EffectiveIncomeTaxRateLossOnDebtExtinguishment_lbl1" xml:lang="en-US"> Effective Income Tax Rate Loss On Debt Extinguishment </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_EffectiveIncomeTaxRateLossOnDebtExtinguishment" xlink:to="auid_EffectiveIncomeTaxRateLossOnDebtExtinguishment_lbl1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DeferredOfferingCosts_lbl1" xml:lang="en-US"> Deferred Offering Costs </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DeferredOfferingCosts" xlink:to="us-gaap_DeferredOfferingCosts_lbl1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LineOfCreditFacilityAnnualPrincipalPayment_lbl2" xml:lang="en-US"> Line of Credit Facility, Annual Principal Payment </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_LineOfCreditFacilityAnnualPrincipalPayment" xlink:to="us-gaap_LineOfCreditFacilityAnnualPrincipalPayment_lbl2"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_DisposalGroupIncludingDiscontinuedOperationForeignCurrencyTranslationGainsLosses_lbl1" xml:lang="en-US"> Disposal Group, Including Discontinued Operation, Foreign Currency Translation Gains (Losses) </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_DisposalGroupIncludingDiscontinuedOperationForeignCurrencyTranslationGainsLosses" xlink:to="us-gaap_DisposalGroupIncludingDiscontinuedOperationForeignCurrencyTranslationGainsLosses_lbl1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_PercentageOfOutstandingShares_lbl1" xml:lang="en-US"> Percentage Of Outstanding Shares </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_PercentageOfOutstandingShares" xlink:to="auid_PercentageOfOutstandingShares_lbl1"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfShareBasedCompensationActivityTableTextBlock_lbl0" xml:lang="en-US"> Share-Based Payment Arrangement, Activity [Table Text Block] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_ScheduleOfShareBasedCompensationActivityTableTextBlock" xlink:to="us-gaap_ScheduleOfShareBasedCompensationActivityTableTextBlock_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_LegacyCustomerMember_lbl0" xml:lang="en-US"> Legacy Customer Member </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="auid_LegacyCustomerMember" xlink:to="auid_LegacyCustomerMember_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_IncreaseDecreaseInOtherCurrentAssets_lbl0" xml:lang="en-US"> Increase (Decrease) in Other Current Assets </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_IncreaseDecreaseInOtherCurrentAssets" xlink:to="us-gaap_IncreaseDecreaseInOtherCurrentAssets_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CompensationExpenseExcludingCostOfGoodAndServiceSold_lbl0" xml:lang="en-US"> Compensation Expense, Excluding Cost of Good and Service Sold </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_CompensationExpenseExcludingCostOfGoodAndServiceSold" xlink:to="us-gaap_CompensationExpenseExcludingCostOfGoodAndServiceSold_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice_lbl0" xml:lang="en-US"> Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SegmentDiscontinuedOperationsMember_lbl0" xml:lang="en-US"> Discontinued Operations [Member] </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_SegmentDiscontinuedOperationsMember" xlink:to="us-gaap_SegmentDiscontinuedOperationsMember_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_Cash_lbl0" xml:lang="en-US"> Cash </label>
<labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="us-gaap_Cash" xlink:to="us-gaap_Cash_lbl0"/>
<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition_lbl0" xml:lang="en-US"> APIC, Share-Based Payment Arrangement, Option, Increase for Cost Recognition </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit_lbl0" xml:lang="en-US"> Share-Based Payment Arrangement, Option, Exercise Price Range, Upper Range Limit </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ExcessStockSharesIssued_lbl0" xml:lang="en-US"> Excess Stock, Shares Issued </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableOptions_lbl0" xml:lang="en-US"> Share-Based Payment Arrangement, Option, Exercise Price Range, Shares Exercisable </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_SaleLeasebackTransactionLeaseTerm_lbl0" xml:lang="en-US"> Sale Leaseback Transaction, Lease Term </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations_lbl0" xml:lang="en-US"> Cash Provided by (Used in) Operating Activities, Discontinued Operations </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ConsolidationPolicyTextBlock_lbl0" xml:lang="en-US"> Consolidation, Policy [Policy Text Block] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree_lbl0" xml:lang="en-US"> Finite-Lived Intangible Asset, Expected Amortization, Year Three </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice_lbl0" xml:lang="en-US"> Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CustomerConcentrationRiskMember_lbl0" xml:lang="en-US"> Customer Concentration Risk [Member] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_PaymentsToAcquireIntangibleAssets_lbl0" xml:lang="en-US"> Payments to Acquire Intangible Assets </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_ScheduleOfOtherAssetsAndOtherLiabilitiesTableTextBlock_lbl0" xml:lang="en-US"> Schedule of Other Assets and Other Liabilities [Table Text Block] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock_lbl0" xml:lang="en-US"> Commitments and Contingencies Disclosure [Text Block] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="srt_ExecutiveOfficerMember_lbl0" xml:lang="en-US"> Executive Officer [Member] </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="auid_CardPlusAmountReceived_lbl1" xml:lang="en-US"> Card Plus Amount Received </label>
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<label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="us-gaap_LesseeLeasesPolicyTextBlock_lbl0" xml:lang="en-US"> Lessee, Leases [Policy Text Block] </label>
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28 Previous Filings that this Filing References

  As Of               Filer                 Filing    For·On·As Docs:Size             Issuer                      Filing Agent

12/21/23  authID Inc.                       8-K:1,9    12/19/23   11:266K                                   EdgarAgents LLC/FA
11/27/23  authID Inc.                       8-K:1,9    11/20/23   14:615K                                   EdgarAgents LLC/FA
11/08/23  authID Inc.                       10-Q        9/30/23   71:6.1M                                   EdgarAgents LLC/FA
10/26/23  authID Inc.                       8-K:1,9    10/25/23   11:344K                                   EdgarAgents LLC/FA
 8/03/23  authID Inc.                       8-K:5,9     7/31/23   12:454K                                   EdgarAgents LLC/FA
 6/27/23  authID Inc.                       8-K:5,8,9   6/26/23   12:9.5M                                   EdgarAgents LLC/FA
 5/26/23  authID Inc.                       8-K:1,3,8,9 5/23/23   15:868K                                   EdgarAgents LLC/FA
 5/16/23  authID Inc.                       8-K:2,5,9   5/11/23   13:2.1M                                   EdgarAgents LLC/FA
 5/11/23  authID Inc.                       10-Q        3/31/23   64:4.1M                                   EdgarAgents LLC/FA
 4/18/23  authID Inc.                       8-K:5,9     4/12/23   12:663K                                   EdgarAgents LLC/FA
 3/30/23  authID Inc.                       10-K       12/31/22   78:7.4M                                   EdgarAgents LLC/FA
 3/28/23  authID Inc.                       8-K:5,9     3/23/23   13:670K                                   EdgarAgents LLC/FA
 3/10/23  authID Inc.                       8-K:1,2,5,7 3/06/23   15:692K                                   EdgarAgents LLC/FA
 9/21/22  authID Inc.                       8-K:5,9     9/20/22   11:236K                                   EdgarAgents LLC/FA
 7/19/22  authID Inc.                       8-K:5,8,9   7/18/22   13:411K                                   EdgarAgents LLC/FA
 4/27/22  authID Inc.                       8-K:5,9     4/25/22   11:456K                                   EdgarAgents LLC/FA
 4/19/22  authID Inc.                       8-K:5,9     4/18/22   11:248K                                   EdgarAgents LLC/FA
 3/22/22  authID Inc.                       10-K       12/31/21   81:6.8M                                   EdgarAgents LLC/FA
 3/21/22  authID Inc.                       8-K:1,2,3,7 3/18/22   21:9.7M                                   EdgarAgents LLC/FA
 2/01/22  authID Inc.                       S-8         2/01/22    5:339K                                   EdgarAgents LLC/FA
11/08/21  authID Inc.                       10-Q        9/30/21   81:5.6M                                   EdgarAgents LLC/FA
 6/15/21  authID Inc.                       8-K:1,3,5,9 6/14/21    9:497K                                   EdgarAgents LLC/FA
 5/06/21  authID Inc.                       10-Q        3/31/21   78:3.6M                                   EdgarAgents LLC/FA
 3/23/21  authID Inc.                       8-K:5,7,9   3/22/21    3:9.2M                                   EdgarAgents LLC/FA
 5/13/20  authID Inc.                       8-K:2,9     5/07/20    3:218K                                   EdgarAgents LLC/FA
 2/18/20  authID Inc.                       8-K:1,2,3,9 2/14/20    6:631K                                   EdgarAgents LLC/FA
12/16/19  authID Inc.                       8-K:1,2,3,512/10/19    5:454K                                   EdgarAgents LLC/FA
 5/04/18  authID Inc.                       10-Q        3/31/18   68:3.3M                                   S2 Filings LLC/FA
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