CAPTCHAs were developed as a type of challenge-response test used in computing to distinguish between human users and automated bots. What is a CAPTCHA and How Do CAPTCHAs Work?ĬAPTCHA, an acronym for “completely automated public Turing test to tell computers and humans apart,” is a technology used to determine whether an online user is a human or a computer program such as a bot.
What are the alternatives to using CAPTCHAs?.What is the difference between reCAPTCHA and CAPTCHA?.
