The process is simple if you can get through all of that. Follow the on-screen instructions to register your key by going to the Settings app (System Settings on Macs), tapping your Apple ID title, Password & Security, and Add Security Keys. To continue using a safety key, you must continue to be logged into all active devices. You will be signed out of any devices running iOS 16.3, iPadOS 16.3, or macOS 13.2 after the process is finished.
