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SynAc
Acronym

MFA

MFA stands for Multi-factor Authentication, an authentication method using multiple factors.

Senses

Multiple factorsMulti-factor Authentication

MFA requires at least two independent factors to authenticate a user. Prefer phishing-resistant factors (e.g., hardware-backed keys) for high-risk admin access.

References
  • NIST CSRC GlossaryJan 05, 2026
    NIST CSRC Glossary — Multi-factor authentication
    https://csrc.nist.gov/glossary/term/multi_factor_authentication
    NIST states most site information is public information and may be distributed or copied, except material marked as copyrighted; attribution requested. Verify per-document markings before quoting.
    Source: NIST CSRC Glossary (csrc.nist.gov).