I have given people a few well known guides and writeups. If you think r/privacy is a friend reliable enough
- https://teddit.net/r/privacy/comments/hlqayn/cia_have_encryption_backdoor_on_signal_according/
- https://web.archive.org/web/20220418214833/https://old.reddit.com/r/privacy/comments/e9t4ck/a_user_here_threw_ad_hominem_at_a_wikileaks_tweet/
American moderators that run iPhones and once even attempted mass brigading a subreddit of 100K+ people to mass report and sitewide ban me.
This shit takes a lot of courage. I do not know of any tech/privacy oriented communities that stand up, they all stand down and boot lick.