One Small Fix Would Curb Stingray Surveillance

Law enforcement in the United States, international spies, and criminals have all used (and abused) the surveillance tools known as "stingrays" for more than a decade. The devices can track people's locations and even eavesdrop on their calls, all thanks to weaknesses in the cellular network. Today, researchers are detailing a way to stop them—if only telecoms would listen.

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