GPS spoofing continuing to affect commercial aircraft

December 2023: GPS spoofing of aircraft has continued in the Middle East, “corrupting their backup inertial navigation systems (INS).” The RNL’s Dr. Todd Humphreys along with Zach Clements are using GNSS observables obtained from LEO satellites to geolocate the spoofers. According to Dr. Humphreys, “the device was on the eastern periphery of Tehran based on many different measurements from many different satellite over-flights.” Unfortunately, the GPS and INS integrated systems in avionics do not currently check each other to avoid ingesting falsely-assumed vetted information. Even if they did, a “crafty spoofer could capture an aircraft even though the aircraft checks data against its inertial sensor.” For more on the subject, visit the Forbes article¬†here.