Microsoft warns: Fraudulent digital certificates issued for high-value websites
"Microsoft today warned that Comodo has issued nine fraudulent digital certificates to a third party whose identity could not be sufficiently validated, a scenario that could allow attackers to spoof content, perform phishing attacks, or perform man-in-the-middle attacks against all Web surfers. According to the Microsoft advisory, the fraudulent Web certificates affect the Microsoft Live service, Google’s mail system, Yahoo and Skype log-ins.
* login.yahoo.com (3 certificates)
* “Global Trustee”"
fonte: ZeroDay http://www.zdnet.com/blog/security/