Former FBI cyber investigator Bazzell presents a comprehensive guide to achieving maximum privacy on mobile devices. Learn expert-level techniques for securing your digital life, from choosing the right operating system (with a focus on GrapheneOS) to implementing advanced communication protocols. Discover proven methods for anonymous service acquisition, secure VoIP implementation, and eSIM configuration while mastering strategies to protect against location tracking and app-based data collection. Perfect for privacy-conscious users and security professionals, this practical guide provides actionable steps to harden your mobile devices against surveillance and data collection, complete with troubleshooting tips and real-world best practices.