When users click the CAPTCHA link, the system analyses many background signals, such as mouse movements, typing speed, IP ...

It’s a simple question — one that most of us regularly answer in the form of a CAPTCHA, a hacker-averting quiz that asks us to distinguish a squiggly “l” from an “S,” or perhaps select all of the ...

The Gmail CAPTCHA has been cracked—albeit not easily—raising new concerns about spammers' ability to abuse Google's e-mail services. Websense Security Labs pointed out the security breach late last ...

The cyber-underground menu of criminal services now includes on-demand, human-assisted CAPTCHA-breaking functionality, researchers are warning — meaning that website admins should look to implement ...

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 ...

Proton, the company behind the end-to-end encrypted Proton Mail, has released PRoton CAPTCHA, a layered system to differentiate between humans and bots. For the past decade-and-a-half, CAPTCHAs and ...

A new bot can crack defenses erected by Microsoft to keep spammers from creating large numbers of accounts on its Live Hotmail service within seconds, a security researcher said Friday. Dan Hubbard, ...

Google has axed its manual Captcha security tool to make way for a new, invisible system that can automatically detect non-human website visitors. Until now, internet users have often been asked to ...