None of that is illegal to write, some of it isn't even illegal to communicate. Most of the things there would only create a legal issue when communicated, but

None of that is illegal to write, some of it isn't even illegal to communicate. Most of the things there would only create a legal issue when communicated, but not when written, and in most cases are necessarily written by authorized persons. Trade Secrets are basically always written down, they are not illegal to communicate, but doing so may violate a contract which would be a civil matter not a criminal matter. In the cases that the contract is either determined not to be binding or expired or was otherwise nullified, communicating trade secrets is an expected outcome. In fact, what makes something a trade secret is that a business takes actions and expends efforts to prevent its communication, as opposed to publishing it openly as a patent and getting legal governmental protections.