Apple details Secure Exclaves, isolated runtimes for camera and microphone data
Apple published details of Secure Exclaves, a security architecture designed to protect camera and microphone data during background processing. Apple says data processed and analyzed within Secure Exclaves cannot be accessed by the main operating system, apps, or the company itself. The company uses Secure Exclaves for person recognition on HomeView, as well as for Siri Recap and Live Rewind.
Summary from Help Net Security.