McAfee researchers say the recent Chinese attacks on Google and Adobe took advantage of a new, unpublicized flaw in Internet Explorer.

"The previously unreported vulnerability allows an attacker to compromise a victim's system just by loading a page from the Internet, the company said," writes SecurityFocus' Robert Lemos.

"Previous reports claimed that attackers used a flaw in Adobe's Acrobat and Reader software to infiltrate targeted systems," Lemos writes. "McAfee's report underscores that some of the attacks used other vectors."

Click here to read the SecurityFocus story.