RDB - years back when I had a php bulletin board on my site, it got eaten by spammers, but they also exploited something that allowed them to edit some of my actual pages. So I came up with a perl script that knew the sizes and dates of creation, and I kept the master list elsewhere. On a regular interval, my perl script would execute and automatically “heal” the site.
This sounds like something you could do also. I just don’t know how easily you can get it in your workflow since I was the only person editing and working on my site (well, other than those spammers) but it might be worth looking in to.
Cheers!
Charles