Avionics
GPS Spoofing Still a Problem for Aircraft Operators
Main security threat areas include Middle East conflict zones
GPSJam map of interference
GPSJAM's map of daily GPS interference shows hot spots of spoofing and jamming activity.

Interference with GPS signals through either jamming or spoofing continues to be an issue in various parts of the world, with hotspots in Eastern Europe, Scandinavia, Russia, and in various conflict zones, including the Middle East. In September, flight operations support provider OpsGroup released its GPS Spoofing Final Report, identifying key issues and work underway to mitigate spoofing problems. 

Spoofing occurs when a GPS/GNSS (global navigation satellite system) receiver is tricked into calculating a false position by equipment transmitting from the ground. This can show the aircraft in a different location than its actual position and prompt the navigation system to send the aircraft off the desired course. Jamming systems attempt to overwhelm relatively weak GPS or GNSS signals and prevent their use by aircraft navigation systems.

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