After returning from vacation I have found my blog rampaged by spammers, which have successfully been able to bypass the CAPTCHA on the site, to post more than 400 comments, a notable amount, considering there are only 186 legitimate comments on this site at the time of writing. Since I was quite frustrated by this, I decided to study the matter a little more and since this took me quite a while, I figured I could document the results of my research and progress here.