It seems that it is possible – even easy – to send spoof travel information messages to satnav systems.
A pair of researchers from infrastructure developers Inverse Path detailed the hack at a Canadian security conference a couple of weeks ago. They used inexpensive off-the-shelf kit — a $40 RDS encoder (price tag: $40), an FM transmitter and a hand-held antenna — to insert data into the RDS-TMC (radio data system-traffic message channel) transmissions used by many satnav systems for real-time travel information.
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