I think the key word in this guy’s whole schpiel is THEORIZE. Obiously, one can THEORIZE about most anything. Could this guy actually be a slightly more technically oriented version of Brian Williams? Flapping his jaws about things of which he really doesn’t know jack? Can someone disable my car engine by hacking into the bluetooth entertainment system? That’s the equivalent of what he sez about commercial airliners.
There are undergraduate universities conducting research right now into this...digital data can be exploited...just depends on time and tools....