By deleting the admin account, as described in the previous recipe, you reduced a major threat of being hacked. However, hackers are (usually) smart and could also try other logins, such as your author name. For example, my name is Jean-Baptiste Jung and a hacker will also probably try it as a login on a brute force attempt.
The solution to this problem is the Login LockDown plugin. The purpose of this plugin is to record the IP address and the timestamp of every failed WordPress login attempt. If more than a certain number of attempts are detected within a short period of time from the same IP range, then the plugin automatically disables the login function.
To install the Login LockDown plugin on your WordPress blog, carry out the following steps:
Visit the link http://www.bad-neighborhood.com/login-lockdown.html, and download the plugin.
Install the plugin on your blog by using the standard plugin installation...