In the wake of a scandal involving third-party companies leaking or selling precise, real-time location data on virtually all Americans who own a mobile phone, the four major wireless carriers have responded to requests from a U.S. senator for more details about how the carriers are managing access to this extremely sensitive information. While three out of four providers said they had cancelled data sharing agreements with some of the offending companies, only one — Verizon — pledged to terminate all of them and initiate a wholesale review of their location data-sharing practices.
At issue are companies known in
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