If you own a PHPBB (www.phpbb.com), you will know how useless they are at preventing robots from signing up and posting links to spam sites.

The spamming on my board at CJ Webmaster Forums had become such a big problem, I decided to do something about it. Firstly, I updated to the latest version (2.0.21). I then installed “Anti-Spam ACP v1.1.0a” which disables the website/msn/icq/aol form fields on registration and to top it all off, I improved the CAPTCHA by installing a PHPBB “advanced” CAPTCHA that I found somewhere on Google.

The new CAPTCHA is so good, even I have trouble to figure out what the letters/numbers are:

I’d like to see them write an OCR tool to read that.