UK Police Intercepting Cell Traffic


From: Threat Level

Britain’s largest police force has been using covert surveillance technology that can masquerade as a mobile phone network to intercept communications and unique IDs from phones or even transmit a signal to shut off phones remotely, according to the Guardian.

The system, made by Datong in the United Kingdom, was purchased by the London Metropolitan police, which paid $230,000 to Datong for “ICT hardware” in 2008 and 2009.

The portable device, which is the size of a suitcase, pretends to be a legitimate cell phone tower that emits a signal to dupe thousands of mobile phones in a targeted area. Authorities can then intercept SMS messages, phone calls and phone data, such as unique IMSI and IMEI identity codes that allow authorities to track phone users’ movements in real-time, without having to request location data from a mobile phone carrier.

A spokesman for the U.S. Secret Service verified to CNET that the agency has done business with Datong, but would not say what sort of technology it bought from the company.

The FBI is known to use a similar technology called Triggerfish, which also pretends to be a legitimate cell tower base station to trick mobile phones into connecting to it. The Triggerfish system, however, collects only location and other identifying information, and does not intercept phone calls, text messages, and other data.

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