Look, you technically illiterate boomer retards.
You CANNOT anonymously post classified information to 4chan's /pol/. It's been done before and the leaker was almost immediately apprehended. ( https://www.vice.com/sv/article/wd7xem/australian-whistleblower-leaks-spy-documents-to-4chan-4chan-dismisses-them-as-gay ) If you post here then your ip address will be associated with you post, and the vast majority of TOR nodes and public VPNs are blocked so that possibility is pretty much out of the question.
If somebody was going to leak highly sensitive information to an imageboard website, they'd do it on eight chan, where users routing traffic through TOR nodes are allowed to post freely.