Telefonica Digital

This Plugin allows developers to integrate Latch on his/her WordPress service. Latch is a service that lets end-users add an extra level of security to their online accounts and services. 
With this version of the Plugin, developers can pair and unpair users and check their latches status. For more information please visit https://latch.telefonica.com or the Plugin page on GitHub https://github.com/Telefonica/latch-plugin-wordpress

Latch

This Plugin allows developers to integrate Latch on his/her WordPress service.

Henrik Schack

This is a plugin for WordPress that provides multifactor authentication with one-time passwords using the <a href="http://www.yubico.com/" rel="nofollow ugc">Yubikey USB token</a>. 
The plugin uses the Yubico Web service API in the authentication process. 
The one-time password requirement can be enabled on a per user basis.

yubikey-plugin

Thanks for an amazing plugin. Hopefully the maintainer is looking and will update things to show they are tested as working with WP 5.4, since it does.

Love that I can use my YubiKey on WP

Enhanced Login Security for Your Wordpress blog.

Latch vs yubikey-plugin