There was quite a stir sparked last week when it was revealed that Google was exploiting a loophole in a Apple's Safari browser to track users through web ads, and that has now prompted a response from Microsoft's Internet Explorer team, who unsurprisingly turned their attention to their own browser. In an official blog post today, they revealed that Google is indeed bypassing privacy settings in IE as well, although that's only part of the story (more on that later). As Microsoft explains at some length, Google took advantage of what it describes as a "nuance" in the P3P specification,