This plane was remotely hijacked. Boeing has a patent on software to take over command of inflight Boeing aircraft.
But the transponder could not be switched off remotely — it had to have been done by the hand of the pilot.
“Boeing has a patent on software to take over command of inflight Boeing aircraft.
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Boeing has lots of similar patents but none ever implemented. Companies do that. Remote control has been around for decades.
There are no external connections to the flight management computers. It is physically impossible to remote hijack that plane.