Google, Facebook CAPTCHAs Beat By Bot

Improvements in computer vision and machine learning are making it harder for companies to defend against automated attacks. 10 Top Tech Companies Poised For Massive Layoffs (Click image for larger view and slideshow.) The term CAPTCHA, proposed by computer science researchers in 2000, stands for “Completely Automated Public Turing test to tell Computers and Humans Apart.” The Turing test, formulated by Alan Turing in 1950, attempts to evaluate whether a computer’s conversational responses to questions can be distinguished from a person’s answers. A CAPTCHA represents a reverse Turing test because it asks a computer rather than a person to identify whether the respondent is human or machine. The roles are reversed. Such tests are themselves being tested by recent advances in computer vision and machine learning. As Google recently demonstrated…


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