The goal of the Turing test is for a human to work out whether they're communicating with another person or a machine. Computers have gotten better at imitating people but they've also improved at ...

CAPTCHAs are those now ubiquitous challenges you encounter to prove that you’re a human and not a bot when you go to log in to many websites. As a computer scientist, I see CAPTCHAs as an effective ...

CAPTCHA-protected malicious URLs are snowballing lately, researchers said. Cyberattackers are using Google’s reCAPTCHA (aka the “I am not a robot” function) and fake CAPTCHA-like services to obscure ...