A Muslim prayer app with over 98 million downloads is one of the apps connected to a wide-ranging supply chain that sends ordinary people's personal data to brokers, contractors, and the military.| VICE
Gravy Analytics has been one of the most important companies in the location data industry for years, collating smartphone location data from around the world selling some to the U.S. government. Hackers say they stole a mountain of data.| 404 Media