Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature currently requires accessing the site using the built-in Safari browser.
If you are still using CentOS 7.9, it's time to convert to Alma 8 with the free centos2alma tool by Plesk or Plesk Migrator. Please let us know your experiences or concerns in this thread: CentOS2Alma discussion
"htaccess" - protections only work for apache - webservers, but the Plesk Control Panel uses it's very on webserver, based on nginx ( called "sw-cp-server" ).
You could add a password protection like for example
at "/etc/sw-cp-server/conf.d/plesk.inc" ( inside several existing location definitions! ) where ".htpasswd" has to be created by you with the desired username and encrypted password ( please see the documentation at http://nginx.com/resources/admin-guide/restricting-access/ ) ... but please be aware, that Plesk could always replace or overwrite the file "plesk.inc" in case of patches/updates/upgrades!
It is pretty "normal", that you experience brute force attacks on login screens, that's why using fail2ban, as suggested by @IgorG is always a good idea and please use a strong admin password and change it from time to time.