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Gmail, Yahoo and Hotmail’s CAPTCHA broken by spammers
From: "Dancho Danchev" <dancho.danchev () gmail com>
Date: Thu, 3 Jul 2008 15:52:20 +0300
Hello, Breaking Gmail, Yahoo and Hotmail's CAPTCHAs, has been an urban legend for over two years now, with do-it-yourself CAPTCHA breaking services, and proprietary underground tools assisting spammers, phishers and malware authors into registering hundreds of thousands of bogus accounts for spamming and fraudulent purposes. This post intends to make this official, by covering an underground service offering thousands of already registered Gmail, Yahoo and Hotmail accounts for sale, with new ones registered every second clearly indicating the success rate of their CAPTCHA breaking capabilities at these services : http://blogs.zdnet.com/security/?p=1418 Regards -- Dancho Danchev Cyber Threats Analyst/Blogger http://ddanchev.blogspot.com http://blogs.zdnet.com/security http://windowsecurity.com/Dancho_Danchev _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
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