Wer hätte gedacht, dass bei einem Turingtest auch mal der Programmierer durchfallen kann. 😉
Reshared post from +Andrew Hintz
How not to design a CAPTCHA
While taking a Digital Image and Video Processing class (EE 371R at utexas.edu), I picked up a summer hobby of writing CAPTCHA breakers. Most CAPTCHAs can be decoded with a combination of Gaussian edge detection and XOR difference analysis with known characters. However this one falls to a simple regex.
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