Puppycow
Penultimate Amazing
At this point who is to even say what is legal or illegal in these kinds of situations?
I imagine a lot of people like Musk and Zuckerberg just play the game of doing what they want and outspending their rivals in court.
Well there is a concept called industrial or corporate espionage, but it seems unlikely that anything here would fall under the illegal sort.
You can obtain information about a competitor by legal means.
Found some pretty interesting reading on the topic here:
Trade secrets: Who owns what is in your head?
This was published last year but seems to be a good explainer for the current state of the law in the United States.
But basically they would have to prove ownership of some kind of trade secret and also that the other party used illegal means to learn that secret.