Apple Updates Platform Security Guide, Says Kernel Extensions Won't Be Supported on Future Apple Silicon Macs Thursday February 18, 2021 11:00 am PST by Joe Rossignol Apple today shared an updated version of its Platform Security Guide [PDF], providing a comprehensive overview of the latest security advancements across iOS 14, iPadOS 14, macOS Big Sur, tvOS 14, watchOS 7, and more. For example, the guide provides security details about Safari's optional Password Monitoring feature on iOS 14 and macOS Big Sur, which automatically keeps an eye out for any saved passwords that may have been involved in a data breach. Apple also outlines the security of its new digital car keys feature on the iPhone and Apple Watch.