Do, or do not – Rafael Steil

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Tag Archives: captcha

On captcha security

Posted on August 1, 2011 by Rafael Steil
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Why almost every Captcha library out there generates images so colorful that could almost cause epilepsia, if the very first thing that any captcha breaker will do is to convert the image to grayscale?!

Posted in General | Tagged captcha, security | Leave a reply

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