[LibWhacker]

I don't know. Presumably hijackers will not be able to disable the system from inside the plane.

[paulk]

Well lets see - for it to work it has to have power (snip with wire cutter) It has to have an antenna (snip with wire cutter or jam it) It has to interface into the flight control system (snip with wire cutter.)

If the plane is built so you cannot open the pannel, the system itself becomes a danger. What happens when someone hacks the system and crashes a plane into a building using the system itself?

This is just a stupid idea - I'm not surprised that pilots don't want to increase MTBF of primary flight systems.