There is a very nice chapter in the somewhat dated but classic book Business Adventures [1] on trade-secrets and what happens when employees of one company move to another. In chapter 11, "A man, his knowledge, and his job", there is a story of a "space-suit" manufacturer Goodrich suing an employee for moving to its rival Latex for stealing trade-secrets. The story is timely in context of Meta hiring researchers from open-ai, deepmind etc for 100s of millions for the knowledge in their heads of the recipes which work for making superior LLMs - the knowledge of which is empirical and may take years to discover.

[1] https://www.amazon.com/Business-Adventures-Twelve-Classic-St...