You joke but this is actually what like 99% of classified documents actually involve, not conspiracy shit, just methodologies that worked that the relevant agency doesn’t want people finding out about and developing countermeasures to.
This is why Edward Snowden is on an extended stay in a Russian airport right now, not for exposing a conspiracy and making the US government look bad, but for basically handing the playbook over to the public leading to adversarial countermeasures against the techniques and exploits they use.
If you ever see those “how to not be identified at a protest” posts, that’s more or less what the letter agencies are trying to avoid people being able to make more of.