Cellphone location data under siege as police use geofence warrants to track suspects

The Supreme Court is set to weigh in on the implications of “geofence warrants” that can target not only a suspect’s known devices but also their entire network, potentially tracking every person with an active internet connection. At stake is the extent to which location data and other personal information stored by tech giants are protected under privacy laws. The court will consider whether the use of such warrants violates the Fourth Amendment rights of Americans who unknowingly share their location data with companies like Google, Amazon, and Facebook.