Obviously one big security flaw of Wordpress is that the admin username is by default “admin”. This is a security risk, because hackers will only need your password and already have your username, that’s a clear advantage! People without experience don’t know that they can change this via PHPMyAdmin and therefore don’t change it.

To improve your blog security install the following plugin.

This way you can change your admin username. Once that is done relogin and your wordpress blog should be a little bit more secure!