Martin Strohmeier's PhD thesis "Security in Next Generation Air Traffic Communication Networks" is pretty sobering reading and goes into a lot of detail. http:/

Martin Strohmeier's PhD thesis "Security in Next Generation Air Traffic Communication Networks" is pretty sobering reading and goes into a lot of detail. http://www.bcs.org/upload/pdf/security-air-traffic.pdf http://www.bcs.org/upload/pdf/security-air-traffic.pdf For example, you don't even need to exploit any systems to cause chaos. You could create a lot of trouble in busy airspace by creating endless TCAS RAs from ghost planes, as the transponders TCAS uses to calculate collision avoidance are not authenticated.