AI-powered wearables—smartwatches, fitness trackers and similar devices—are collecting intimate, real-time data about our bodies and lives, forcing a rethink of traditional privacy norms. This episode explores how constant data harvesting changes what privacy means and who controls our personal information.We examine cryptography as a practical defense: encrypting data, limiting access, and pushing companies to prioritize security. The discussion covers technical and social challenges, from algorithm complexity to trade-offs between convenience and control.Listeners will come away with a clear sense of the risks, the potential protections, and the policy and design choices needed to keep personal data private as wearables become more pervasive.