With the introduction of physical security key support on Apple devices, the company has not yet released its own keys. Instead, it has made iPhones, iPads, and Macs compatible with existing FIDO-certified security keys.
Security Keys for Apple ID
If you decide to use Security Keys for Apple ID, the hardware keys will replace the six-digit 2FA code that would usually be sent to a verified device. This means it's not a suitable option for everyone, as you assume full responsibility for your account (if your keys are lost, you could be locked out of your account permanently). However, if you want a higher level of security for your Apple ID, physical keys offer that.
Keys Recommended by Apple
Apple has recommended three specific keys in a new support document. Furthermore, it has stated that any security keys that meet the following criteria should also be compatible: FIDO-certified and featuring connectivity for Apple devices.
When Security Keys Will Not Work
It's important to be aware that there are four scenarios in which security keys will not work: signing into iCloud for Windows; signing into older devices that can't be updated to a software version that supports security keys; child accounts and Managed Apple IDs; and Apple Watches that are paired with a family member's iPhone.
Requirements for Using Security Keys
Additionally, to use security keys, you must have the following: two FIDO® Certified security keys with connectivity for your Apple devices; iOS 16.3, iPadOS 16.3, or macOS Ventura 13.2, or later on all of the devices where you’re signed in with your Apple ID; two-factor authentication set up for your Apple ID; a modern web browser; and, to sign in to Apple Watch, Apple TV, or HomePod after you set up security keys, you need an iPhone or iPad with a software version that supports security keys.