I’ve been reading a couple of news about blogs running wordpress been hacked. No matter on what purpose you run your blog for, it’s always a good idea to make it as secure as possible. There are many guides that you can find on the net; ranging from covering the basic security setup to the hardcore ways. In my opinion, the most basic security measures a user can take is to upgrade their wordpress to the latest version (currently 2.5.1). When you do that, at least you can prevent all the previous releases bugs from occurring on your site. I admit I’m no expert in talking with precise details about security in wordpress, but I do know that it’s a really really unfortunate event if your blog been take over by some jackass and ruining all file/setup you had made. I also suggesting you keep check at your files and make sure you do know all changes that occurred. Update your plugins often, be sure to install plugins from a reliable source, and personally, I recommend you to install WordPress Exploit Scanner Plugin.

Suggested guide:
File Changes Notifications for Your WordPress Blog on Linux
Did your WordPress site get hacked?
Three tips to protect your WordPress installation
10 Ways to Secure your WordPress Install
Hardening WordPress