Comment Form Attack
Came back from a nice walk on the seafront, including a 30 minute professional firework display from a boat 20 meters offshore and about 50 people watching, to find that someone had attempted to attack my blog comment to send spam. Fortunately according to my mail logs, nothing went out, but it did make me go through and read the comment plugin code. I did wonder if every suitable field had been cleaned and have now made sure that it is. Looks like it came from several IP addresses over a 5 minute period and got past my (admittedly very) simple turing test, so I don't think it was an automated script. For an example of the attacks, check out this old posting.