Stealth Login
Protect your dashboard with a game-changing authorization code. The login form will never be the same again.
What it does
Without locking down access via IP address or file permissions, this plugin creates a secret login authorizaiton code. Those who do not enter this additional authorization will be automatcally redirected to a customizable URL.
This is the first plugin that blocks external bot login requests - login requests must comply with the full login sequence or the request is rejected.
Find out more here