Stingray - Clandestine Cellphone Tracking Tool - Fights On

The FBI calls it a “sensitive investigative technique” that it wants to keep secret. But newly released documents that shed light on the bureau’s use of a controversial cellphone tracking technology called the “Stingray” have prompted fresh questions over the legality of the spy tool.

Functioning as a so-called “cell-site simulator,” the Stingray is a sophisticated portable surveillance device. The equipment is designed to send out a powerful signal that covertly dupes phones within a specific area into hopping onto a fake network. 

The feds say they use them to target specific groups or individuals and help track the movements of suspects in real time, not to intercept communications. But by design Stingrays, sometimes called “IMSI catchers,” collaterally gather data from innocent bystanders’ phones and can interrupt phone users’ service—which critics say violates a federal communications law. The FBI has maintained that its legal footing here is firm. Now, though, internal documents obtained by the Electronic Privacy Information Center, a civil liberties group, reveal the bureau appears well aware its use of the snooping gear is in dubious territory...

It’s likely that in the months ahead, a few more interesting nuggets of information will emerge. The FBI has told EPIC that it holds a mammoth 25,000 pages of documents that relate to Stingray tools, about 6,000 of which are classified. The Feds have been drip-releasing the documents month by month, and so far there have been four batches containing between 27 and 184 pages each. Though most of the contents—even paragraphs showing how the FBI is interpreting the law—have been heavy-handedly redacted, several eyebrow-raising details have made it through the cut. (more) (Stingray explained)