Apple continues to tighten iOS security, and iOS 16.3 (and iPadOS 16.3, and macOS Ventura 13.2) includes support for physical security keys. In other words, a physical device can verify your Apple ID ...
The Fn key is short for function – this particular key allows PC users to access the second assignment of a key. It is normally found at the bottom left corner. The Function keys (F1, F2, etc) are ...