One of my client's sites was hacked, I believe. I just checked it and didn't see any content appearing. I tried logging in but couldn't. I looked in the database via phpmyadmin and saw that the tables wp_posts and wp_users were missing.
He had 2.8.4 -- the latest version of WordPress. To fix the hack, I manually upgraded the site to reinstall 2.8.4, but it didn't fix it. So I imported a backup of the database to restore the site.
I know there's a worm going around. But I thought signs of infection included a bunch of spam embedded in your posts, not total post deletion. I also thought sites with 2.8.4 were safe.
Has anyone else experienced a hack like this? Is it possible to delete these mysql tables from the dashboard area? Did someone hack into my server and access phpmyadmin?