two-factor

Paired authentication method

Two-factor describes authentication or verification requiring two distinct types of credentials—typically something you know (a password) and something you have (a phone or security key): Two-factor authentication adds an extra layer of security.

The term appears almost exclusively in computing and security contexts.

Often abbreviated 2FA.

authentication

2FA

Secondary identity confirmation

security code · authenticator · SMS · OTP · token · passkey · push notification · backup codes · recovery · biometric

mathematics

equation

Mathematical equality assertion

variable · expression · algebra · multiplication · product · coefficient · term · expansion · distributive · formula

experimental

ANOVA

Compares means among groups

dependent · statistics · research · levels · conditions · variance · hypothesis · control · treatment · between-subjects

Categories
Opposites
authentication complexity

two-factorpasswordless

Authentication without secret phrases

unauthenticated · open access · multi-factor · unsecured · unprotected

Family

two, factor, twos, factors, factored, factoring, factorial, factorials, twice

Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Abstract · Rated G