vBulletin Issues Warning : Google reCAPTCHA System Cracked

“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.vBulletin issues the following warning to those running vBulletin with reCAPTCHA system:”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…”