Usability of CAPTCHAs or usability issues in CAPTCHA design

  title={Usability of CAPTCHAs or usability issues in CAPTCHA design},
  author={J. Yan and A. Ahmad},
  booktitle={SOUPS '08},
  • J. Yan, A. Ahmad
  • Published in SOUPS '08 2008
  • Computer Science
  • CAPTCHA is now almost a standard security technology, and has found widespread application in commercial websites. Usability and robustness are two fundamental issues with CAPTCHA, and they often interconnect with each other. This paper discusses usability issues that should be considered and addressed in the design of CAPTCHAs. Some of these issues are intuitive, but some others have subtle implications for robustness (or security). A simple but novel framework for examining CAPTCHA usability… CONTINUE READING
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