Revision as of 02:53, 15 January 2026

2FA

Authentication using two or more factors to achieve authentication. Factors include: (i) something you know (e.g., password/personal identification number [PIN]); (ii) something you have (e.g., cryptographic identification device, token); or (iii) something you are (e.g., biometric).

Source: NIST SP 1800-27B | Category:

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