As cybersecurity experts across the digital economy struggle to keep pace with ever-evolving threats, advancements in mobile security and privacy offer a vision into how security can be done properly while enabling continuous improvement. While new threats to mobile devices continue to arise, the protections in place are generally working better than in other areas of cybersecurity. It is imperative to understand why this is, how it came to be, and to ensure that policymakers do not make decisions that could weaken these protections.