Protection of the site admin panel from hacking.

To protect your sites, we recommend that you close access to files and folders in the admin area in .htaccess:
wp-login.php (WordPress)

to the admin.php file (Other CMS)
to the admininstrator folder for Joomla


An example of completely closing all calls to this page from everyone.
Code:

For access by a specific ip, write in .htaccess

Code:

where instead of 85.22.12.19 we register the desired ip, each new ip from a new line.

For more information on methods of protecting sites on Wordpress from cybercriminals, see this article:

How to protect a WP site from hacking?