Explore the evolving landscape of hardware privacy features in smart home devices, wearables, and augmented reality glasses in this 23-minute conference talk from USENIX Enigma 2023. Delve into the design, purpose, and security properties of Recording Indicator LED lights and Privacy "Mute" Switches. Examine the constraints, trade-offs, and security assurance challenges associated with these seemingly simple yet crucial privacy mechanisms. Gain insights into the semantics of privacy LED indicators, their limitations, and the unique challenges posed by augmented reality. Understand the importance of industry-wide collaboration in developing new security and privacy standards to ensure trustworthy privacy protection in our increasingly smart and augmented future.