FCC proposes fines against AT&T, Verizon, Sprint and T-Mobile for selling real-time mobile phone location data without taking reasonable measures to protect against unauthorized access. FCC also admonished these carriers for apparently disclosing their customers location information, without their authorization, to a third party. FCC Chairman Ajit Pai: “The FCC will not tolerate phone companies putting Americans privacy at risk” FCC Chairman Wyden: Pai “has failed to protect American consumers at every stage of the game”]
Source: https://www.cuinfosecurity.com/fcc-to-fine-us-carriers-over-location-data-sales-a-13795

