WIRED
The surveillance devices simulate cell phone towers in order to trick nearby mobile phones into connecting to them and revealing the phones’ locations.
Now newly released documents confirm long-held suspicions that the controversial devices are also capable of recording numbers for a mobile phone’s incoming and outgoing calls, as well as intercepting the content of voice and text communications. The documents also discuss the possibility of flashing a phone’s firmware “so that you can intercept conversations using a suspect’s cell phone as a bug.”
The information appears in a 2008 guideline prepared by the Justice Department to advise law enforcement agents on when and how the equipment can be legally used.
The
Department of Justice ironically acknowledges in the documents that the
use of the surveillance technology to locate cellular phones 'is an
issue of some controversy.'
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