Help:Two-factor authentication: Difference between revisions

Revision as of 03:07, 17 March 2024

Revision as of 03:28, 1 April 2024

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{{seealso|:meta:Help:Two-factor authentication}}

{{Infopage|H:2FA|WP:2FA}}

{{nutshell|Administrators and editors with advanced permissions should ideally enable two-factor authentication for account security, and can do so by following this guide.}}

{{warning|'''Particular attention''' should be paid to the section of this guide on [[H:SCRATCH|scratch codes]] — if you don't keep these codes and encounter a problem with your 2FA device, you will be locked out of your account.}}

[[File:Différents modèles de lecteurs de cartes bancaires.jpg|thumb|240px|2FA is like a software version of the [[security token]] devices used for online banking in some countries.]]

'''[[Multi-factor authentication|Two-factor authentication]]''' ('''2FA''') is a method of adding additional security to your account. The first "factor" is your usual password that is standard for any account. The second "factor" is a verification code retrieved from an app on a mobile device or computer. 2FA is conceptually similar to a [[security token]] device that banks in some countries require for [[online banking]]. Other names for 2FA systems include ''OTP'' (''[[one-time password]]'') and ''TOTP'' (''[[Time-based One-time Password algorithm]]'').