License Plate Readers Can Now Track You Using Your Electronics (06.11.2026)
The short version: The Cyber Security Admin breaks down SignalTrace, tech that lets ALPR cameras fingerprint your phone, AirPods, and smartwatch alongside your plate.
Our Take
For years the pitch from Flock and its competitors has been "we only read plates." That line was always a little too convenient, and this video — credit to The Cyber Security Admin for digging into the 404 Media reporting on SignalTrace — shows exactly why. If ALPR networks start slurping up Bluetooth, Wi-Fi, and RFID emissions alongside plate captures, you no longer need to swap cars or borrow a friend's vehicle to dodge the dragnet. Your phone, your earbuds, your smartwatch become the new plate number, and that number never gets swapped out at the DMV.
This is the natural next step for an industry that has always framed itself as a plate-reading tool while quietly building out infrastructure for something much bigger: a persistent, device-level tracking grid bolted onto streetlights and intersections across the country. Once a camera can tie a device fingerprint to a location and timestamp, the "we don't do facial recognition" defense stops mattering much. You don't need a face when the gadget in someone's pocket is broadcasting its own unique signature.
We don't know yet how widely SignalTrace or similar add-ons will be deployed, so we're not going to speculate past what's been reported. What we do know is that the only real check on this kind of mission creep is public awareness and local pushback before contracts get signed. Check our camera map to see what's already watching your neighborhood, and hit up our take-action page if you want to push back before your city council quietly approves the next upgrade.
This is DeFlock The USA’s original commentary. The video above is the work of The Cyber Security Admin, published on YouTube — full credit to the creator.