This plugin is outdated and might not be supported anymore
Lockdown WP Admin

Lockdown WP Admin

Details
View on WordPress

This plugin will hide WordPress Admin (/wp-admin/) when a user isn’t logged in. If a user isn’t logged in and they attempt to access WP Admin directly, they will be unable to and it will return a 404. It can also rename the login URL.

Also, you can add HTTP authentication directly from WP Admin and add custom username/password combinations for the HTTP auth or use the WordPress credentials.

This doesn’t touch any .htaccess files or change the WordPress core files. All the CSS/Images under /wp-admin/ are still accessible, just not the .php ones.

If you enable HTTP authentication, it will add HTTP authentication to the PHP files in /wp-admin/.

To contribute to the development, check out the GitHub Repository.

Details

Plugin code:
lockdown-wp-admin
Plugin version:
2.3.2
Outdated:
Yes
WP version:
3.6 or higher
PHP version:
or higher
Test up to WP version:
4.3.34
Total installations:
10,000
Last updated:
2015-09-28
Rating:
Times rated:
54
lockdown
secure
security
vulnerability
website-security