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AI bots are so good at mimicking the human brain and vision that CAPTCHAs are useless

Aug 17, 2023 - qz.com
Artificial Intelligence (AI) bots are now outperforming humans in solving CAPTCHA puzzles, according to a recent research paper. The study, conducted by researchers from the University of California, Irvine, ETH Zurich, Lawrence Livermore National Laboratory, and Microsoft, found that AI bots have a success rate of 85-100% in decoding CAPTCHAs, significantly higher than the human accuracy range of 50-85%. The bots also solve the puzzles faster than humans in most cases.

The research raises questions about the effectiveness of CAPTCHAs in preventing automated invasions on websites. The study's findings suggest that the effort invested in solving CAPTCHAs may not be worthwhile. The challenge lies in designing better CAPTCHAs that provide an appropriate level of security without discouraging users due to their difficulty.

Key takeaways:

  • AI bots are now beating the reCAPTCHA methodology used to confirm the validity and personhood of the users of various websites.
  • A recent research paper indicates that AI-automated attacks on various CAPTCHA schemes have been successful, with bots showing higher accuracy and speed than humans.
  • The study involved testing websites that used CAPTCHA puzzles, which account for 120 of the world’s 200 most popular websites.
  • There's a problem with designing better CAPTCHAs because they have a built-in ceiling, if it’s too difficult, people give up.
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