Introduction to Signal Trace Surveillance attaches to Flock cameras to read your phones!
The short version: Mumford Law flags ELSAG SignalTrace, a Leonardo-made sensor reportedly bolting onto Flock cameras to sweep Bluetooth, Wi-Fi, RFID, and AirTag signals — not just plates.
Our Take
If this holds up, it's the next logical, dreaded step in the Flock buildout: the box on the pole stops being a plate reader and becomes a general-purpose signal vacuum. Bluetooth from your phone, Wi-Fi from your laptop, RFID from your badge, the chip in your dog — all of it swept up as you simply drive past, with the same absence of a warrant that's defined ALPR surveillance from day one. Credit to Mumford Law for putting a name and a manufacturer, Leonardo subsidiary ELSAG, behind the hardware instead of leaving this as a vague rumor.
What makes this different from plate reading is the intimacy of the data. A plate tells police a car was somewhere. A phone's MAC address, a Bluetooth beacon, an AirTag signature — those can follow a specific device, and by extension a specific person, across contexts a license plate never could: in a parking garage, in a crowd, in someone else's car. Bolt that onto a network already scanning billions of plates a month with no warrant requirement, and you've quietly built a system that can identify not just where your car was, but what you were carrying when you got there.
We don't have deployment numbers yet, and neither does the video — this is early. But the pattern with Flock has been consistent: capability creeps in quietly, communities find out after the contract's signed, and pushback only works once people know what's on the pole. Check our camera map to see what's already watching your streets, and if you want to push back before your town adds signal sniffing to its plate reader budget, start with our take-action guide.
This is DeFlock The USA’s original commentary. The video above is the work of MUMFORD LAW, published on YouTube — full credit to the creator.