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InsideReCaptcha: Reverse-engineering the new reCAPTCHA

8 points by pearjuice 12y ago

lifthrasiir 12y ago
> It turned out this new ReCaptcha system is heavily obfuscated, as Google implemented a whole VM in JavaScript with a specific bytecode language. (Emphasis original) I guess it inherently requires security-by-obscurity (with all of its benefits and flaws), but well, that is interesting.