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What Is the Big Secret Surrounding Stingray Surveillance?

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Cell phone tower

Stung: Law enforcement agencies sometimes use a device called a stingray to simulate a cell phone tower, enabling them to gather international mobile subscriber identity (IMSI), location and other data from mobile phones connecting to them. Pictured here

Credit: Joe Ravi (CC-BY-SA 3.0), via Wikimedia Commons

Given the amount of mobile phone traffic that cell phone towers transmit, it is no wonder law enforcement agencies target these devices as a rich source of data to aid their investigations.

From Scientific American
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