A few weeks ago some hackers broke into my blog here (this was before 2.8.4 was released). At first I thought they just left some porn sites in a couple of blog entries. So we upgraded Wordpress (I was on 2.7× back then). Deleted a fake admin account. Deleted the porn sites. And thought we had solved the problem. We didn’t.
They broke back in, but this time they did a lot more damage. They deleted about two months of my blog.