Change This Ad Setting to Stop T-Mobile's Data Tracking
by David Murphy from Lifehacker on (#5F5JE)

Today's offender in the world of mobile carriers is T-Mobile. The Uncarrier" isn't dropping a new pink-colored mobile plan-it's a bit more troubling than that. At least, if you care about T-Mobile's data-collection practices, and who it shares that data with. (You should care about that very much.)