Installed on WP 6.3. Works fine.
I tried a few but they were too complex. This one makes it easy to secure a specific user (admin) and get a code via email which is what you need now hosting companies (Bluehost, GoDaddy) allow login to admin via their control panels with administrator passwords. (Talk about inbuilt security breaches)
First plugin I install for each new website.However... What would make it perfect is that the code sent via email was displayed in a separate line.This would avoid adding a whitespace when selecting a string.