Cats and Dogs Protect Web Sites From Spammers

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If you've been online for any length of time you know that many web sites now have a system called CAPTCHA which is a "human recognition system" that tries to stop automated programs from posting messages online. This is usually done by tossing up an annoying image with distorted numbers and letters and asking a user to repeat the phrase. Sometimes even humans can't read the stupid images.

Enter Microsoft with their Asirra project. They're working on a new human-detection technology which also has the added benefit of promoting animal adoption. In combination with Petfinder, they display images of animals and ask the user to identify the difference between cats and dogs. This system is apparently much harder to defeat than regular CAPTCHA, and you could end up with a fuzzy new companion in the process!

Want to see the form in action? Check out the Pet-based CAPTCHA here




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