Security measures known as Captchas, or Fully Automated Public Turing Tests to Tell Computers and Humans Apart, are intended to distinguish between automated bots and human usersatata kings. They typically appear as distorted text, images, or puzzles that require human intervention to solve. Captchas are primarily used to safeguard websites against spam & exploitation by making sure that only legitimate users can access particular features or submit forms. But people are also using captchas to solve them as a way to make money online.