CAPTCHAS

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Google, it’s time to kill CAPTCHAS – Computerworld

Google wanted CAPTCHAs to test whether users were human or bots to protect websites from spam and fraud — but with a twist. Google intended to substitute the original, deliberately distorted letters (readable by people but not bots) with accidentally distorted ones — ambiguous scans from the Google Books Library Project. For example, if most users identified a blurry letter as an…