Code9 2-step verification code for users. utility tool for wordpress. lightweight and high performance.
Authy is the easiest and fastest way to add strong 2 Factor Authentication to your WordPress blog.
Simple 2 step authentication for the masses!
Harden your website's authentication; add two-factor authentication (2FA) for all your users with this easy-to-use plugin.
The SecSign ID two-factor authentication WordPress Plugin will be discontinued.