One of my sites was a Movable Type site, and all I had to do to fix it was go to MT and click "rebuild site"; all my data was still intact. My other site will take a tiny bit more work to fix, and I haven't yet gotten around to it. A google search for the phrase the hackers displayed ("H4ck3rsBR Ownz - Now FreeBSD 4.10-BETA - S8ldier") turned up a huge list of other, similarly defaced sites, so clearly, this is some massive attack, and not just a personal assault on me.
Curious, George: I've been H@x0red! Two of my websites were hacked last week. As far as I can tell, the hackers just changed the index.html file; they didn't alter any other file in my directory. How did they get access to my index file? Should I be worried? How can I prevent this in the future?