"I suspect nobody wants to do that because it might call into question the effectiveness of industry self regulation on privacy," she said.
Cranor reportedly alerted Microsoft back in 2010 to the potential for the kind of privacy breach it describes Google uses, according to the All About Microsoft blog.
Microsoft said it has asked Google to honor P3P privacy settings for users of all browsers, Hachamovitch said.
In addition, he noted that this issue does not impact users of a new privacy feature called Tracking Protection in IE 9.
Microsoft's Monday blog post follows an uproar last week following a Wall Street Journal article that charged Google with circumventing privacy policies in Safari, allowing it to track user movement across web sites. The activity would allow Google to track users of iPhones and other devices that use Apple's Safari browser.
Google said the story mischaracterizes what happens and why. It denied that it was tracking users but acknowledged that it inadvertently was dropping advertising cookies on users' phones against their wishes.
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