The most important path in WordPress is wp-admin, and the only way to protect it is by changing its name and hiding it from hacker bots.
To do this with WP Ghost, change the name for the wp-admin with your custom name in
WP Ghost > Change Paths > Admin Security > Custom Admin Path.

Note! No files or directories are physically altered. All changes are implemented through server rewrite rules, ensuring no impact on SEO or loading speed.
Read More: Change and Hide wp-admin Path with WP Ghost