Having a password isn't really enough these days. If you have a website with sensitive information you should really consider 2-factor authentication, where instead of just a password you also need a code from your phone.
The add-on works really well and adds that extra layer of security for your peace of mind!

This is exactly what i have been waiting for. One of my clients has been asking to use 2 step login like this as they feel the information held on some of there pages is really sensitive.

This plugin is perfect. Really steps up security and is easy to setup, use and has saved me loads of programming time and effort.

Very useful and modern security add on to create an additional security layer of concrete 5.
The plug-in version 1.0.6 works reliably with 8.2.1 and support response quickly!
I like this 👍

This add-on is easy to set up and a great addition to your website security strategy. The hard work of incorporating two-factor authentication has already been done for you.

I had an issue at installation that turned out to be related to PHP 7.2+ compatibility. I opened a support ticket and the developer quickly identified the problem and released a fix. We all know the only thing better than a great add-on is excellent, timely support. Highly recommended!