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CAPTCHA, acronym for “completely automated public Turing test to tell computers and humans apart” is used, most of the times at least, as an authentication mechanism. Not to prove your identity, but to do a much simpler job than that; to prove your a human.
With the bad guys always a step ahead (which is cool by me), older forms of CAPTCHA have become unsafe and easy to hack – very easy actually.
A few months ago, we saw a new implementation of this method, using cats instead of numbers. That’s a great idea. It’s much difficult for a bot and/or crawler to detect in 9 figures which ones are cats and which ones are not. However, things have taken another step forward.
Introducing, HOTCAPTCHA – literally
Proving your a human has *never* been easier – there are some really ‘bad’, to be gentle, photos there – and fun.
If the author manages to add more pictures to the database, it will be pretty secure.
grasshoppermind says
Does anyone know of a CAPTCHA type feature that also works if you’re partially sighted? The problems of CAPTCHA’s are not only that they can be beaten, but that they create additional obstacles for people relying on screen readers etc.
Darknet says
grasshopeermind: Actually a lot of the modern captcha implementations have features for accessibility. Often they have an audio option built in for people with limited vision or those using screen readers.