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It has become apparent from our customers and customers of other BB Systems that there is a targeted effort being made to spam forums world-wide. Unfortunately as part of that effort it appears that ReCaptcha may have been cracked as per this page:
Despite denials from Google, a security researcher continues to assert that the Search King’s reCAPTCHA system for protecting Web sites from spammers can be successfully exploited by Internet junk mail panderers.
Researcher Jonathan Wilkins published a paper recently that included an analysis of reCAPTCHA’s security. In automated attacks he conducted against the system, he reported he had an alarming success rate of 17.5 percent.
Unlike most CAPTCHA systems, Google’s uses images with two words. That’s because Google uses reCAPTCHA for two purposes. Like other CAPTCHA systems, it’s designed to frustrate spammers, but it’s also incorporated into Google’s efforts to digitize books. When a word in a book scan can’t be recognized by Google’s OCR software, it’s sent to the reCAPTCHA pool. So when a person enters a reCAPTCHA phrase into a form, Google can discover what its OCR program couldn’t, without having to hire human editors to review scanning results.
Hey, if Google's OCR software cant read it, and we type it in during the verification process, how can the challange be compared to the response?
Hands Down Best Way To Get Rid Of It All! Forget the small fish (not entirely yet) and go for the Big Fish. It's the big fish that hire these people to spam, so make them pay for it!
Fines should be handed out for every link to the target address owner. So they have to pay for every link (X) number of times listed in a mail (X) number of mail sent.