CAPTCHAs

CAPTCHAs, or Completely Automated Public Turing tests to tell Computers and Humans Apart, are challenges designed to distinguish between human users and automated bots. They often require users to solve puzzles, like identifying distorted letters, selecting images with certain objects, or answering simple questions. These tests help protect websites from spam and abuse by ensuring that actions, like submitting forms or creating accounts, are performed by real people rather than automated programs. By filtering out bots, CAPTCHAs enhance online security and improve user experience on various platforms.