Aug

08

Rethinking Captcha

captcha, fail, programming, rethink

CAPTCHA – Completely Automated Public Turing test to tell Computers and Humans Apart.

All current CAPTCHA implementations are doomed to fail due to the persistence of developers to place the onus on client side technologies for validation.  Whether you show the answer to the challenge (albeit after making recognition difficult), or have users spin a photo until it is upright, you are still giving the end-point everything they need to pass the test.

It’s time to rethink CAPTCHA, and move the means of protection server side where it can not be manipulated.