WordPress Auth using Google Authenticator is a simple plugin which allows authorization with Google Authenticator tokens.

RapID Secure Login (RapID-SL) is a simple and convenient authentication plugin.

Fortytwo’s 2FA plugin controls access to your site by sending an authentication code via SMS to your mobile phone when you register or login.

Add two-factor authentication (2FA) for all your users with this easy to use plugin. Harden your website login page. Add whole new layer of security.

Free, simple and secure token-based authentication for your WordPress. No registration required.

Supports push authentication, soft token, email verification, security questions.

The Swoop WordPress plugin is a simple and secure password-free authentication service. We invented the Magic Link™ and now the Magic Message™.

Passwordless 2FA for your WordPress admin account with one-click install. Trusona's FREE passwordless plug-in prevents unauthorized logins, defacing and hacks while accessing your account with ease.

SUA – Secure User Account WordPress Login is a plugin that will allow you to secure your account

2FAS Classic — Two Factor Authentication strengthens WP-admin security by requiring an additional verification (token) code on untrusted devices.

Google Authenticator(2FA) works out of the box on your wordpress site without any third party service involvement. Two Factor Authentication made easy. Supports Google Authenticator and Authy Authenticator App.

The SecSign ID two-factor authentication WordPress Plugin will be discontinued.