Don't you hate those CAPTCHAs that leave you squinting at the screen in irritated bewilderment? Here are some systems that are a little more user friendly.
YUNiTi.com announces the first implemented method of Captcha.
Spammers appear to defeat Captcha and use fake Microsoft and Yahoo Web mail addresses to spread spam.
A new way to create Captchas using 3D images would make it much easier for human beings to pass while remaining really difficult for computers.
There's got to be a better way to prove you're human.
Imperva study finds CAPTCHAs, designed to keep spambots off Web sites, can easily be broken by humans and can turn people away if they are difficult or annoying to complete.
Web sites including Blizzard, eBay, and Visa's Authorize.net use a flawed antibot mechanism, Stanford researchers say. They say companies should take security more seriously.
Can't read your way past the humans-only gateway on that Web site? NuCaptcha has a filter that's easier for you, harder for robots.
Borrowing from the field of machine vision, Stanford University researchers have discovered how to solve over 90 percent of NuCaptcha's are-you-a-human video challenges.