Use a YubiKey secure hardware token to log in to your site. With or without a username. Assign a YubiKey as your master key to all user accounts. Use your custom key servers. Or use it to provide two factor authentication for best security. Even better? You don't have to spend a penny for these awesome features. It's free of charge.
Use your YubiKey to log in to your site without entering a username or password. Insert the YubiKey, touch its gold disk and you're in.
Need to troubleshoot a user's access? Assign a YubiKey as your "master key" and use it to log in to any user account, without changing their password.
Running an Intranet / Extranet with your own key server? Does the "cloud" not appeal to you? No problem. You can use your own key validation URL.
Require the use of YubiKey with a username and password for that extra level of security. Feature only compatible with Joomla! 3.2 and later.
Security and convenience are finally not at odds. Strong cryptography and distributed key validation in a single touch!
Users can self-manage their YubiKeys. Developers can mass assign YubiKeys to user account. And they can access the YubiKey validation programmatically, for those sensitive operations that need extra security.
Akeeba's YubiKey Authentication Plugins for Joomla! are provided free of charge. For all. And for ever. Just because we can**. What are you waiting for?