This and https://www.privacyguides.org/en/
Don’t buy all the ebooks. Unless you really want to. But the big 2 ebooks, extreme privacy 4th edition and Resources for Uncovering Online Information - 10th Edition (2023 are the best ones cause they cover a lot. But they are currently being updated and going to be re-released next year.
The smaller ebooks are for specific topics. Monthly updated forever. You may find these ebooks online. Very hard to find. I have linux devices, don’t mind doing swaps for ‘Leaks, Breaches, & Logs - Digital Edition (2024)’ and or ‘The Ultimate Virtual Machine - Digital Edition (2024)’ if somebody has them. We can do a simplex chat. Well done on your journey op. It’s a rabbit hole.
Oof, lucky I left them for aegis, android only app a long time ago. I hope/think I closed my authy account 🤞