full-disclosure - Re: Gmail, Yahoo and Hotmail’s CAPTCHA broken by spammers

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Message-ID: <6158bb410807031153u44275bb7t1217b2903a270f5e@mail.gmail.com>
Date: Thu, 3 Jul 2008 14:53:30 -0400
From: Ureleet <ureleet@...il.com>
To: "Dancho Danchev" <dancho.danchev@...il.com>
Cc: full-disclosure@...ts.grok.org.uk
Subject: Re: 
	Gmail, Yahoo and Hotmail’s CAPTCHA broken by spammers

didnt this happen like 6 months ago too?  come on!  it'll be a tail
chase, the vendors will improve the catcha, the spammers will break
it, they'll improve it..  etc..  its never ending bullshit.

On Thu, Jul 3, 2008 at 8:52 AM, Dancho Danchev <dancho.danchev@...il.com> wrote:
> 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
>
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