Of all of the recent technological developments that have expanded the surveillance capabilities of law enforcement agencies at the expense of individual privacy, perhaps the most powerful is cell ...

Police generally need a warrant to look at records that reveal where cellphone users have been, the Supreme Court ruled Friday in a big victory for privacy interests in the digital age. The justices' ...

A Milwaukee PD "critical response vehicle", or surveillance van. (Photo by Isiah Holmes/Wisconsin Examiner) A Milwaukee PD "critical response vehicle", or surveillance van. (Photo by Isiah ...

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MONTPELIER The Office of the Vermont Attorney General has blocked efforts to find out whether law-enforcement officials are using cell-phone technology to pinpoint the whereabouts of private citizens, ...

Capitalizing on all the information we put into our cell phones, Verizon Wireless is selling all our app usage and location information to marketers, reports CNET's Declan McCullagh. Part of what it ...

Many law enforcement agencies across the U.S. track mobile phones as part of investigations, but only a minority ask for court-ordered warrants, according to a new report released Monday by the ...

The U.S. National Security Agency collects five billion records every day tracking cell phone movements around the world, according to documents leaked by former NSA contractor Edward Snowden. In ...