From Rorschach tests to trigonometry, this 48-level gauntlet is the most infuriating test of your humanity yet. Can you ...

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 ...

A company that makes a security product designed to thwart problems such as comment spam has added new security and customization features for website owners. NuCaptcha’s self-titled product takes a ...

A company that makes a security product designed to thwart problems such as comment spam has added new security and customization features for website owners. NuCaptcha’s self-titled product takes a ...

A company that makes a security product designed to thwart problems such as comment spam has added new security and customization features for website owners. A company that makes a security product ...