Answer: A security system to block robots.
reCAPTCHA is the improved version of CAPTCHA. CAPTCHA is short for Completely Automated Public Turing test to tell Computers and Humans Apart. It is a puzzle involving letters or an image that needs to be deciphered. Only humans can solve this puzzle. Robots can put unnecessary strain on a website or decipher passwords through thousands of attempts. The reCAPTCHA prevents these types of attacks.
Quickly go to: