Captcha is broken - now what?
source: http://www.theage.com.au/news/web/captcha-is-broken--now-what/2008/08/30/1219516773778.html
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- EddieStarr
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"Spammers have employed large teams of temporary staff to solve Captchas, effectively rooms of people, usually in a third world country, sitting at a computer and solving them.
Despite these issues, heavily attacked companies such as Microsoft are not abandoning the system. "We are updating our Captcha system to be both more readable for customers but more difficult to break through," a spokesman said. "Improvements include new image distortion logic, overlapping characters and dynamic monitoring capabilities to observe attacks in real time."
The failings of Captcha impact every internet user.Breaking Captcha enables networks of computers to post malicious content to legitimate sites. What can replace Captcha? Layered security means adding human or third-party checks to actions like registration, and then monitoring content later to check for malicious use. The trade-off is that as security increases, usability decreases..."
Despite these issues, heavily attacked companies such as Microsoft are not abandoning the system. "We are updating our Captcha system to be both more readable for customers but more difficult to break through," a spokesman said. "Improvements include new image distortion logic, overlapping characters and dynamic monitoring capabilities to observe attacks in real time."
The failings of Captcha impact every internet user.Breaking Captcha enables networks of computers to post malicious content to legitimate sites. What can replace Captcha? Layered security means adding human or third-party checks to actions like registration, and then monitoring content later to check for malicious use. The trade-off is that as security increases, usability decreases..."
