Leonardo Markets SignalTrace to Link Device Signals With Cars, Raising 95% Reidentification Fears
Updated
Updated · Fox News · Aug 18
Leonardo Markets SignalTrace to Link Device Signals With Cars, Raising 95% Reidentification Fears
3 articles · Updated · Fox News · Aug 18
Summary
SignalTrace pairs wireless signals from phones, wearables and vehicle electronics with license plate reader data, letting investigators build recurring travel patterns and even recognize vehicles when plates are not visible.
Leonardo says the system captures publicly broadcast signals, not message content or device-stored data, and that any identification still requires separate steps such as matching a linked plate to registration records.
95% of mobility traces in a 1.5 million-person study were uniquely characterized by four time-and-place points, underscoring how data that looks anonymous can become identifying when combined with vehicle and location records.
A June 2026 Supreme Court ruling in Chatrie held that obtaining cellphone location data from Google was a Fourth Amendment search, adding legal pressure to similar location-tracking tools even though SignalTrace itself has not been directly tested.
Leonardo says deployments remain limited, but the technology points to broader use beyond policing—including parking, traffic and automotive applications—as roadside tracking infrastructure expands.