WordPress is one of the best and most popular open source CMS/blogging platforms. The down side of its popularity is that it is frequently exploited by hackers wanting to take over and deface your website. In fact, one of the WordPress sites I work with prevented 716 hacking attacks between July 8, 2009 and November 23, 2009. One important way to prevent hack attacks is to keep your WordPress up to date. This article will show you how.