April 2009 Entries
Chances are, you've seen a Captcha. You probably had to fill one out to sign up for an account somewhere. Chances are less likely that you've had to implement a Captcha. Chances are even more less than likely that you've actually looked into whether the Captcha can be defeated or not.
The answer is yes, Captchas can be defeated. Even the best of them have flaws. They are being defeated by using the same algorithms that are used to track people in video cameras. For those of you who are 3D vector mathematics wizards, if that's even the proper name for...