from the we-don't-need-this-kind-of-help dept.
PainMeds writes "An article by author Jonathan Zdziarski reveals that OnStar has recently updated their terms and conditions to allow the company to sell customer GPS coordinates, vehicle speed, and other information to third party marketers and analytics companies, where it could be used for a number of nefarious purposes. He says, 'To add insult to a slap in the face, the company insists they will continue collecting and selling this personal information even after you cancel your service, unless you specifically shut down the data connection to the vehicle after canceling. ... It sounds as though OnStar is poising part of their analytics department to be purchased by a large data warehousing company, such as a Google, or perhaps even an Apple. Do you trust such companies with unfettered access to the entire GPS history of your vehicle?"
We warn the reader in advance that the proof presented here depends on a
clever but highly unmotivated trick.
-- Howard Anton, "Elementary Linear Algebra"