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
Tags: two factor, two step, authentication, login, totp, fido u2f, u2f, email, backup codes, 2fa, yubikey
Requires at least: 4.3
Tested up to: 4.9.1
Stable tag: trunk (master)
For more history, see: http://stephanis.info/2013/08/14/two-cents-on-two-factor/
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/georgestephanis/two-factor.git
$ npm install
Then open a pull request with the suggested changes.
See: https://github.com/georgestephanis/two-factor/commits/master