Global Positioning System (GPS) and other GNSS (Global Navigation Satellite Systems) have become an essential element of the worldwide information infrastructure. Processes and systems are increasingly dependent on quality positioning and can be exposed to cyber-attack related risks which compromises position integrity.
Security is not a built-in feature of GNSS open services and low-received-power as well as unencrypted civil signals are vulnerable to jamming and spoofing attacks. Jamming is usually detected by the receiver because it stops tracking satellites and cannot create a position solution, whereas a more sophisticated ‘Spoofing attack’, intentionally broadcasts a counterfeit GNSS signal that slightly overpowers the authentic signal to manipulate the receiver’s reported position, velocity or time. Spoofing poses a greater security risk because it is deceptive and civil grade receivers generally cannot identify the counterfeit signals from the authentic ones.
Our Satguard service offers GNSS navigation message authentication which cross checks the satellite navigation message in our global reference network, providing a digital signature to the users GNSS receiver and clearly indicating any potential threat.