The "code audit" that you guys did to make sure nothing was backdoored was
quite thorough too, considering since then remote bugs in Snort have been
published. If you can't even spot the vulnerable code you introduce into
your source tree by accident, how can you definitively argue that no one
else snuck in subtle bugs that you also didn't catch?
I'm sure it would have been extraordinarily difficult to run 'diff' on
the codebase before the intrusion and the one after, to see if any of
the changes weren't accounted for.