ELSAG SignalTrace

ELSAG SignalTrace is a mass surveillance technology provided by the company Leonardo. Similarly to Flock's mass surveillance system, SignalTrace relies on a vast distribution of internet-connected sensors in public spaces. However, SignalTrace collects short-range radio signals from passing vehicles and individuals, in order to uniquely identify them. Many people have numerous radio devices with them, ranging from their car's own Bluetooth and WiFi radios, to the Bluetooth and WiFi radios in their smartphones, headphones, wristwatches/fitness trackers, medical devices, smart glasses, and much more. As each person passes a SignalTrace sensor array, their assortment of wireless signals is collected and analyzed, in order to identify them uniquely. Even the signals of often unseen radios including Tire pressure sensors, are used in this analysis.

This surveillance system is marketed heavily to law enforcement organizations, but also retail businesses and others.

“	This system uses strategically placed sensors to collect electronic communication patterns and identities of consumer electronics, like vehicle components, Bluetooth, RFID tags, and Wi-Fi. As the electronic devices emit signals, sensors in the SignalTrace software capture their identifying or categorizing details to create an additional data set to enhance the records captured by LPR cameras in the area.	”
—Leonardo ,