We’ve heard variations on the phrase “If you have nothing to hide, you have nothing to fear” from the government for quite some time. It appears this may be true, at least if you are the government.
In the case of Stingray, a cell phone spying device used against Americans, the government does have something to hide and they fear the release of more information. Meanwhile, the Fourth Amendment weeps quietly in the corner.
Cell phone technology is very useful to the cops to locate you and to track your movements. In addition to whatever as-yet undisclosed things the NSA may be up to on its own, the FBI acknowledges a device called Stingray to create electronic, “fake,” cell phone towers and track people via their phones in the U.S. without their knowledge. The tech does not require a phone’s GPS. This technology was first known to have been deployed against America’s enemies in Iraq, and it has come home to be used against a new enemy— you.
Stingray, also known as an International Mobile Subscriber Identity, or IMSI, catcher, works like this. The cell network is designed around triangulation and whenever possible your phone is in constant contact with at least three towers.
As you move, one tower “hands off” your signal to the next one in your line of motion. Stingray electronically inserts itself into this process as if it was a (fake; “spoofed”) cell tower itself to grab location data before passing your legitimate signal back to the real cell network. The handoffs in and out of Stingray are invisible to you. Stingrays also “inadvertently” scoop up the cell phone data of anyone within several kilometers of the designated target person. Though typically used to collect location metadata, Stingray can also capture conversations, texts and mobile web use if needed.
Stingray offers some unique advantages to a national security state: it bypasses the phone company entirely, which is handy if laws change and phone companies no longer must cooperate with the government, or simply if the cops don’t want the phone company or anyone else to know they’re snooping.