Are you talking about government lists requiring that certain locations not be revealed?
I would have to research to find all the details.
Estonia has one, you can read about it and see details here https://forum.inaturalist.org/t/protection-status-in-estonia-and-how-to-add-it/8218
I believe Lithuania has one, Norway and Iceland have one, at least one Australian state (Queensland) has one, but I don’t know the legal requirements it enforces etc.