A new effective attack against Google’s CAPTCHA mechanisms was invented by a security researcher lately. The whole attack procedure is presented in a paper that was released on Saturday. The attack is based on OCR (Optical Character Recognition) techinques that used to evade Googles’ reCAPTCHA (CAPTCHA stands for Completely Automated Public Turing test to tell Computers and Humans Apart, for more information click here). reCAPTCHA is a recent security measure that Google uses so as to stop malicious scripts of doing important tasks without has been done first a specific authentication process. This process requires the sense of sight, that a computer script can’t have, so that optical puzzles can be solved first, in order to continue with the task execution.
The FORWARD project blog
blogging on emerging and future threats
