Really wish folks would quit mis-remembering quotes then attributing them to Elon, without a link. It took all of 5s effort Googling to find the real quote:
Elon Musk says preventing a 'fleet-wide hack' is Tesla's top security priority - Electrek
The statement was made at the National Governors Association meeing in July 2017. Elon never said such a hack would bankrupt TESLA (you still reading too much TSLAQ?)
Here's what Elon actually said:
“I think one of the biggest concern for autonomous vehicles is somebody achieving a fleet-wide hack.
“In principles, if someone was able to say hack all the autonomous Teslas, they could say – I mean just as a prank – they could say ‘send them all to Rhode Island’ [laugh] – across the United States… and that would be the end of Tesla and there would be a lot of angry people in Rhode Island.
“We gotta make super sure that a fleet-wide is basically impossible and that if people are in the car, that they have override authority on whatever the car is doing. If the car is doing something wacky, you can press a button that no amount of software can override and ensure that you gain control of the vehicle and cut the link to the servers.
“Within the car, there are multiple sub-systems that have specialized encryption, like the powertrain for example. Even if someone gains access to the car, they cannot take control of the powertrain or braking system.”
As usual folks, years later fear colors memory more intensely than wise counsel. HTH.
TL;dr It's never a bad as you thought.
Cheers!
Excuse me, which part of "the end of Tesla" do you not understand?