There’s a Multibillion-Dollar Market for Your Phone’s Location Data

 Originally published in The Markup, Sept 30, 2021.  A huge but little-known industry has cropped up around monetizing people’s movements. Companies that you likely have never heard of are hawking access to the location history on your mobile phone. An estimated $12 billion market, the location data industry has many players: collectors, aggregators, marketplaces, and location