Overview CAPTCHA keeps websites safe by preventing bots from accessing services.Advanced bots are improving, so CAPTCHA must evolve continuously.Future CAPTCHA ...

Why it matters: The usefulness of Captcha tests depends on their ability to deter bots without significantly inconveniencing human users. Although not yet peer-reviewed, the results of a new study ...

Spammers are using a bot to sidestep barriers that Microsoft Corp. has erected to keep scammers from creating massive numbers of accounts on its Live Mail service, a security researcher said today.

How do you let people create user accounts or post comments on your Web site without letting spam bots in? Simple — make your users prove they’re human. Many Web sites use CAPTCHA (Completely ...

Artificial intelligence (AI) has reportedly demonstrated its superiority over humans when it comes to solving online CAPTCHA tests designed to differentiate between human users and automated bots. Can ...

Spammers have cracked Microsoft Corp. ‘s latest defense against abuse of its Live Hotmail e-mail service using a sophisticated network of hacked computers that receive encrypted instructions from a ...