Two-Factor

Enable Two-Factor Authentication using time-based one-time passwords (OTP, Google Authenticator), Universal 2nd Factor (FIDO U2F, YubiKey), email and backup verification codes.

Contributors: georgestephanis, valendesigns, stevenkword, extendwings, sgrant, aaroncampbell, johnbillion, stevegrunwell, netweb, kasparsd, alihusnainarshad, passoniate
Tags: two factor, two step, authentication, login, totp, fido u2f, u2f, email, backup codes, 2fa, yubikey
Requires at least: 4.3
Tested up to: 5.5
Stable tag: trunk (master)
Requires PHP: 5.6

Description

Use the "Two-Factor Options" section under "Users" → "Your Profile" to enable and configure one or multiple two-factor authentication providers for your account:

• Email codes
• Time Based One-Time Passwords (TOTP)
• FIDO Universal 2nd Factor (U2F)
• Backup Codes
• Dummy Method (only for testing purposes)

For more history, see this post.

Actions & Filters

Here is a list of action and filter hooks provided by the plugin:

• two_factor_providers filter overrides the available two-factor providers such as email and time-based one-time passwords. Array values are PHP classnames of the two-factor providers.
• two_factor_enabled_providers_for_user filter overrides the list of two-factor providers enabled for a user. First argument is an array of enabled provider classnames as values, the second argument is the user ID.
• two_factor_user_authenticated action which receives the logged in WP_User object as the first argument for determining the logged in user right after the authentication workflow.
• two_factor_token_ttl filter overrides the time interval in seconds that an email token is considered after generation. Accepts the time in seconds as the first argument and the ID of the WP_User object being authenticated.

Screenshots

Two-factor options under User Profile.

U2F Security Keys section under User Profile.

Email Code Authentication during WordPress Login.

Get Involved

Development happens on GitHub. Join the #core-passwords channel on WordPress Slack (sign up here).

Here is how to get started:

$ git clone https://github.com/wordpress/two-factor.git
$ npm install

Then open a pull request with the suggested changes.

Changelog

See the release history.