The Department of Homeland Security is warning pilots that small planes could be hacked. The concern is over a hacker physically getting on board and attaching a device to its wiring. Not only can this give the wrong altitude and speed, but a pilot could lose control of the plane.
Homeland Security researchers proved their point when they hacked a 757 while it was parked. Pilots are now being urged to secure their aircraft. Small plane makers are also urged to study the cyber security protections that car markers have added.
Source: CBS News