[cloud_line]

I recall reading that certain aircraft manufacturers do offer more robust security features if the airlines are willing to pay for them. I don't have a link or source handy, but it's entirely possible that these features have been discussed, but through the lens of how much more would it cost to implement them.

[amluto]

Garmin has a system that can notify ATC of an emergency, choose an airport, fly there, and land the plane, autonomously.

https://www.planeandpilotmag.com/article/garmin-autoland-thi...