Microsoft today warned that attackers are targeting Internet Explorer (IE) with an exploit of a critical unpatched vulnerability in all current versions of the browser.

Only IE9, which is still in beta, is unaffected.

Microsoft and others confirmed that attacks are circulating in the wild, primarily targeting IE6, the nine-year-old browser that Microsoft's been trying to kill for more than a year.

"So far, the attacks we have seen only target Internet Explorer 6 and would not have been successful against Internet Explorer 8," said Andrew Roths, Jonathan Ness and Chengyun Chu, three engineers who work on the Microsoft Security Response Center team.

More: http://www.computerworld.com/s/article/9194679/