The future of CAPTCHA
Posted by Robin Whittleton on July 23, 2008 at 03:07 PM
CAPTCHA (standing for Completely Automated Public Turing test to tell Computers and Humans Apart) must have seemed like a good idea when it was first invented in 2000. Spam was beginning to become a major problem on the web and a method was needed to fight back. CAPTCHA at first glance seems ideal: a distorted image that would be instantly recognisable by humans yet incomprehensible to machines. Place some letters in the distorted image and get the user to type them back and bingo: you’ve stopped your spam problem.
No spam please
Posted by Paul Sturgess on April 04, 2008 at 10:22 AM
Why is it the owners of mailing lists just wont let you leave? Even when you have no interest whatsoever in what they are sending you.