[wilsonmw04]

another site that I admin was hacked in the same way fairly recently. They replaced my site with some stupid splash screen, with the fools handle, a Turkish flag and a scrolling banner stating how "uber" this guy/gal was.

After some digging, We found that this person was exploiting a weakness in phpbb we were using. After updating the software, we haven't had a problem. no matter what you do you will always have a problem with security if you use a popular piece of software.