Here Is the Manual for the Mass Surveillance Tool Cops Use to Track Phones

The Electronic Frontier Foundation (EFF) and the Associated Press have revealed that local police departments across the U.S. are using a tool called Fog Reveal to track individual devices without a warrant, based on data harvested from smartphone apps installed on people’s phones. The user manual for Fog Reveal has been obtained by Motherboard, providing new insight into this technology that is being utilized by local police departments in various investigations. Virginia-based Fog Data Science is the company behind Fog Reveal, which appears to be focused on providing a similar capability to law enforcement agencies.