Links
madaidan’s Insecurities
https://madaidans-insecurities.github.io/
madaidan is a security researcher most known for his contributions to the Whonix project. He is a knowledgeable individual who maintains an accurate and detailed collection of guides and bulletins on various privacy and security topics on his site.
GrapheneOS
GrapheneOS is a third-party Android operating system with a focus on privacy and security. It employs a variety of different technologies and techniques to strengthen defenses against exploitation, and has contributed much of this work back upstream to the Android Open Source Project.