Microsoft releases February security updates, including fixes for bugs in Office and the scanning engine used by the companys security products. The security software flaw is of particular concern because it could, in theory, be very easily exploited by an attacker. The bug has to do with the way that Microsoft’s Malware Protection Engine processes PDF files. There is not yet any known attack that exploits this flaw, but it could become a serious problem for Windows users running Microsoft’s security products, experts say.”]