CAPTCHA and Accessibility - Is This the Best We Can Do?

  title={CAPTCHA and Accessibility - Is This the Best We Can Do?},
  author={Lourdes Moreno and Mar{\'i}a Gonz{\'a}lez and Paloma Mart{\'i}nez},
Web access is affected by a great amount of accessibility issues that do not allow some users to access all information presented. Therefore, Web accessibility is an important issue because everybody should access Web content independently of their access features. Among these accessibility issues, a Web content element that interferes with Web accessibility is a CAPTCHA. A CAPTCHA is a challenge-response test used to determine whether or not the user is a human instead of a computer or a robot… 
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