Beej

The greatest hack focus on a WordPress site seems to be trying to log in with 
the default username “admin”. This plugin detects all login attempts with that 
username and exits with a 403 Forbidden header. This should eventually 
discourage login bots from continuing to pound your site.
All attempts are logged inside the /wp-content/plugin-data folder, just in case 
you need the info. Logs are kept for up to 30 days.

Block Default Login Attempts

Completely block default admin user login attempts in WordPress.

Thomas Schulte

This plugin presents the official hacker emblem on your blog so you can show your sympathy with the goals and values of hackers and their lifestyle. It’s possible to use a widget in the sidebar or you can just put it the shortcode [glider] into your articles and pages.

Glider – Universal Hacker Emblem

This plugin presents the official hacker emblem on your blog so you can show your sympathy with the goals and values of hackers and their lifestyle.

Block Default Login Attempts vs Glider – Universal Hacker Emblem