An article that better explains what I’m asking...
http://www.ibtimes.co.uk/malaysia-airlines-flight-mh370-could-jets-system-have-been-hacked-1439928
“A document filed on the US Federal Register website indicates that aircraft manufacturer Boeing applied to have additional security installed aboard some of its 777 series of airplanes five months ago to prevent onboard hacking of critical computer systems.
Boeing said that it was upgrading the 777-200, 777-300 and 777-300ER series of passenger jet with a new onboard network system.
The concern was that the passenger inflight entertainment system would be connected to critical systems for managing the safety and maintenance of the aircraft.
Passenger seatback entertainment systems come with ethernet and USB ports, which would in theory enable access to a hacker to the critical computer systems.
Boeing asked the Federal Aviation Administration to alter its licence to allow it to add a “network extension device” to separate the various systems from each other.
That would prevent accidental or delibarate tampering with the critical system.”
“which would in theory “
remember one ting about the FAA: it no longer is run at the executive or middle management layers by pilots, aviation professionals, or engineers. You might as well as have “journalists” run the show. Having an MBA does qualify one to run an aviation program as the FAA thinks it does. We often run into problems with the incompetent raising issues that have no basis in reality.