Microsoft scrambles to fix 'severe' security flawPreviously unknown flaw leaves PCs vulnerable to spyware, virusesA previously unknown flaw in Microsoft Corp.'s Windows operating system is leaving computer users vulnerable to spyware, viruses and other programs that could overtake their machines and has sent the company scrambling to come up with a fix.
Microsoft said in a statement yesterday that it is investigating the vulnerability and plans to issue a software patch to fix the problem. The company could not say how soon that patch would be available. (MSNBC is a Microsoft - NBC joint venture.)
Mike Reavey, operations manager for Microsoft's Security Response Center, called the flaw "a very serious issue."
Security researchers revealed the flaw on Tuesday and posted instructions online that showed how would-be attackers could exploit the flaw. Within hours, computer virus and spyware authors were using the flaw to distribute malicious programs that could allow them to take over and remotely control afflicted computers.