Prevent unauthorized access to your admin login.
Divert unwanted traffic to your admin login off to any url you desire. I'm sending people off to Google. So long suckers!
Access the admin login with the proper access code and you'll have the VIP treatment of being shown your WP login.
I've successfully logged in with both my access code and my normal username and password.
TD Admin Lock, nicely tucked in to your normal WP Settings menu.
This is where the magic happens.