I'm sure China is going to be yearning for those sweet traffic pattern data during a war. They'll know which Walmarts they need to bomb first.

It's not like there are satellites that can get high-res pictures of most of the US every few hours. Or millions of phones running all kinds of software.

Even the US-made cars have dozens of computers that run very crude C-based code, full of bugs and overflows. Security was never a priority for this code. There are so many routes of ingress that it's not even funny.