Multifactor

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Abbreviation(s) and Synonym(s):

NIST SP 1800-13B

Definition(s):

A characteristic of an authentication system or an authenticator that requires more than one distinct authentication factor for successful authentication. MFA can be performed using a single authenticator that provides more than one factor or by a combination of authenticators that provide different factors. The three authentication factors are something you know, something you have, and something you are.
Source(s):
NIST SP 1800-17b
NIST SP 1800-17c

Glossary Comments

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See NISTIR 7298 Rev. 3 for additional details.