Is it possible to restrict categories to specific groups of vetted users?

Hello! I would like to use discourse to build a community for information security professionals and novices. Some of this would involve sharing sensitive information, but only with users that have been vetted, and can be trusted, Is there any way to restrict categories to specific users.

Apologies if this question has been asked before. I searched, but could not find anything.

You can create groups and limit access to categories based on those groups.