These websites contain a significant amount of factual technical information and are generally good resources to follow.

GrapheneOS FAQInformation on GrapheneOS and general Android security.
Madaidan’s InsecuritiesHighlighting security issues within popular technologies, debunking misinformation, and providing free security guidance for everyone.
Wonderfall’s LabThoughts and research on security, privacy, and pharmacology.
Wonderfall’s SpaceBlog posts about privacy and security in French.
Seirdy’s BlogThoughts on security, privacy, and software freedom.