[DEPRECATED] Please migrate to https://github.com/georgestephanis/two-factor
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Latest commit 8bee521 Apr 10, 2015


U2F Login

Make WordPress login secure with U2F (Universal Second Factor) protocol


You may use strong password, security plugin, and etc to protect your WordPress from attacks. But once your password has leaked out, you have no choice but to change it. (New one is stronger and longer)

With this plugin, you can use WordPress's login feature much safer even if your password is "1234"!


  • Important: To use this plugin, check following.
    1. Using PHP 5.5 or later
    2. Using WordPress 4.0 or later
    3. Owns FIDO U2F device (We recommend FIDO U2F SECURITY KEY to get started.)


  • Copyright (c) 2012-2014 Daisuke Takahashi(Extend Wings)
  • Portions (c) 2010-2012 Web Online.
  • Unless otherwise stated, all files in this repo is licensed under GNU AFFERO GENERAL PUBLIC LICENSE, Version 3. See LICENSE file.


  1. Upload the u2f folder to the /wp-content/plugins/ directory.
  2. Activate the plugin through the 'Plugins' menu in WordPress

Frequently Asked Questions

This plugin is broken! Thanks for nothing!

First of all, we supports PHP 5.5+, MySQL 5.5+, WordPress 4.0+. Old software(vulnerable!) is not supported. If you're in supported environment, please create pull request or issue.




  • Initial Beta Release

Upgrade Notice


  • None