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Two-Factor Authentication
conceptSecurity Method
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Overview
Use caseauthentication security enhancement
Knowledge graph stats
Claims40
Avg confidence93%
Avg freshness99%
Last updatedUpdated 5 days ago
WikidataQ2946402
Trust distribution
100% unverified
Governance
Not assessed
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Two-Factor Authentication

concept

Security process requiring two different authentication factors to verify user identity before access.

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mitigates against

ValueTrustConfidenceFreshnessSources
Password-based attacks and credential theft○UnverifiedHighFresh1
password-based attacks○UnverifiedHighFresh1

requires

ValueTrustConfidenceFreshnessSources
Something you know and something you have or something you are○UnverifiedHighFresh1
Two distinct authentication factors○UnverifiedHighFresh1
primary authentication factor○UnverifiedHighFresh1
at least two different authentication factors○UnverifiedHighFresh1
Something you know and something you have authentication factors○UnverifiedHighFresh1
something you know and something you have○UnverifiedHighFresh1

primary use case

ValueTrustConfidenceFreshnessSources
authentication security enhancement○UnverifiedHighFresh1
enhancing account security by requiring two forms of authentication○UnverifiedHighFresh1
authentication security method requiring two different verification factors○UnverifiedHighFresh1
Authentication security enhancement by requiring two different authentication factors○UnverifiedHighFresh1
authentication security mechanism requiring two different verification factors○UnverifiedHighFresh1

part of

ValueTrustConfidenceFreshnessSources
multi-factor authentication systems○UnverifiedHighFresh1

defined in standard

ValueTrustConfidenceFreshnessSources
NIST SP 800-63B○UnverifiedHighFresh1

standardized by

ValueTrustConfidenceFreshnessSources
NIST (National Institute of Standards and Technology)○UnverifiedHighFresh1
NIST Special Publication 800-63B○UnverifiedHighFresh1

based on

ValueTrustConfidenceFreshnessSources
multi-factor authentication principle○UnverifiedHighFresh1
something you know and something you have principle○UnverifiedHighFresh1
something you know, something you have, something you are authentication factors○UnverifiedHighFresh1
multi-factor authentication principles○UnverifiedHighFresh1

reduces risk of

ValueTrustConfidenceFreshnessSources
password-only attacks○UnverifiedHighFresh1

alternative to

ValueTrustConfidenceFreshnessSources
single-factor authentication○UnverifiedHighFresh1
Single-factor password authentication○UnverifiedHighFresh1

integrates with

ValueTrustConfidenceFreshnessSources
Google Authenticator○UnverifiedHighFresh1
Microsoft Authenticator○UnverifiedHighFresh1
Authy○UnverifiedHighFresh1
hardware security keys○UnverifiedHighFresh1

supports protocol

ValueTrustConfidenceFreshnessSources
TOTP (Time-based One-Time Password)○UnverifiedHighFresh1
HOTP (HMAC-based One-Time Password)○UnverifiedHighFresh1
SMS-based verification○UnverifiedModerateFresh1
SMS authentication○UnverifiedModerateFresh1
SMS-based authentication○UnverifiedModerateFresh1
FIDO U2F○UnverifiedModerateFresh1
FIDO2/WebAuthn○UnverifiedModerateFresh1
Push notification authentication○UnverifiedModerateFresh1
WebAuthn○UnverifiedModerateFresh1

enhanced by

ValueTrustConfidenceFreshnessSources
biometric authentication○UnverifiedModerateFresh1

Alternatives & Similar Tools

single-factor authentication
alternative to
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Single-factor password authentication
alternative to
Compare →

Commonly Used With

Google AuthenticatorMicrosoft AuthenticatorAuthyhardware security keys

Related entities

Graph Insights

1 entities depend on Two-Factor Authentication
Two-Factor Authentication
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Claim count: 40Last updated: 4/5/2026Edit history