rogerd - 4:18 pm on Jun 4, 2011 (gmt 0)
Server level and host level attacks are a different story, though they can be just as traumatic. One host I used to work with couldn't seem to keep the door shut to hackers, who replaced all index pages with their own message page. After the second time it happened, I changed hosts.
Keeping Wordpress up to date will prevent known WP hacks, at least.