Senators Franken and Coons cite WINLAB Researchers

As widely reported in the media last week, Senators Al Franken and Chris Coons urged OnStar to reconsider changes in their privacy policy. The letter to OnStar cited a WINLAB research paper to back up their position. OnStar has since reversed the decision to track and sell customer's location information. The letter referred to the paper "On the Anonymity of Periodic Location Samples" authored by Prof. Marco Gruteser and his student Baik Hoh. It was published in the proceedings of the 2nd Intl. Conference on Security in Pervasive Computing, Boppard, Germany, 2005. The full text of the letter is available in Senator Franken's press release at