Originally Posted by rickair7777

As I said before within the physical limits of the hardware, absolutely anything is possible with software. With enough skill and access, it would be possible to send an airplane off course with all indications appearing normal except for two...the mag compass and the position of the sun relative to the nose. But the people with those skills (the system designers and neer-peer nation-state intel/military) would probably not have an incentive to do it.