The FBI currently uses technology, which acts as a fake cell phone tower to track and locate phones being used by targets. Known as “Stingray,” the technology can locate, interfere and intercept communications. The use of this technology is being challenged in the case of Daniel Rigmaiden, a “hacker” who was indicted on charges of conspiracy, [...]

Wireless carriers have experienced an “explosion” in surveillance over the last five years. Carriers have responded to at least 1.3 million demands for “subscriber data” during the last year and have been “turning over records thousands of times a day in response to police emergencies, court orders, law enforcement subpoenas and other requests,” according to Eric [...]

Public records from local and state law enforcement agencies reveal a significant number of law enforcement agencies in the United States use cell phone tracking even if they do not have a warrant or probable cause to engage in such surveillance. The American Civil Liberties Union (ACLU), which requested and obtained the records, finds the [...]

Map of ACLU Affiliates that filed FOI requests (photo: ACLU ) The ACLU has launched a massive effort with more than thirty of its state affiliates to uncover just how law enforcement agencies, large and small, are using cell phone location data to track Americans. The national organization and its affiliates submitted 379 requests through [...]