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The captchas generated by this module are trivial to guess automatically using simple image processing and widely-available OCR libraries. They would not be effective at stopping targeted spam bots.
I've attached an incredibly naive Python script that gets the captcha right around ~50% of the time (I'm sure you could achieve higher accuracy with just a little more effort).
It simply splits the generated captchas into 5 characters using white-space, then runs the open-source OCR engine tesseract on each character.
Comment | File | Size | Author |
---|---|---|---|
captcha_breaker_py.txt | 1.75 KB | asya-bergal |
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