Interesting article about how GPS has been applied as a communication mechanism beyond transport to monitoring / management of SCADA and regions w/o internet connectivity. The researchers highlight that the implementation by integrators have not deployed any kind of security that would prevent creative attackers to manipulate the data flows:
the Simplex data network that Globalstar uses for its satellites doesn’t encrypt communication between the tracking devices, orbiting satellites, and ground stations, nor does it require the communication be authenticated so that only legitimate data gets sent. As a result, someone can intercept the communication, spoof it or jam it.
“The integrity of the whole system is relying on a hacker not being able to clone or tamper with a device,” says Moore. “The way Globalstar engineered the platform leaves security up to the end integrator, and so far, no one has implemented security.”
Given the amount of unsecured communication platforms from Drones to IoT, this problem is probably easily repeated across a broad number of consumer and commercial situations.
Author of How Not To Be Hacked