Forget CAPTCHA use ASIRRA
CAPTCHA (Completely Automated Public Turing test to tell Computers and Humans Apart) or HIP (Human Interactive Proof). HIPs are used for many purposes, such as to reduce email and blog spam and prevent brute-force attacks on web site passwords. Most website like Gmail, Hotmail, Yahoo Mail and many other blog website’s use these HIP’S to ask their users to identity the text and in this way they distinguish between the human and spammer. Some times it’s very difficult and challenging for the user to understand these CAPTCHA.
