Google takes CAPTCHA security to the streets
An experiment with digital images from Street View aims to stymie CAPTCHA-resistant bots Follow @tsamson_IW In a move that could make CAPTCHA challenges a bit easier for humans and more difficult for bots, Google is experimenting with using street-number images from Street View to strengthen its reCAPTCHA authentication technology. Traditionally, CAPTCHA technology works by challenging […]
Researchers break video Captcha security using robot vision
Researchers at Stanford University have discovered a way to break state-of-the-security video Captchas of the sort deployed by companies such as NuCaptcha with a 90 percent success rate. Rather than presenting users with a conventional static but scrambled series of letters and numbers, NuCaptcha’s video version offers partially rotating text that also moves from left […]
Trojan found breaking Yahoo CAPTCHA security in minutes
Researchers have discovered a malware engine that appears to be able to break the CAPTCHA security used by Yahoo’s webmail service after only a handful of attempts. There is nothing new in malware that tries to break CAPTCHA (Completely Automated Public Turing test to tell Computers and Humans Apart) – a low-level war has been […]