The new iOS 16.3, iPadOS 16.3, and macOS Ventura 13.2 betas that were seeded to developers on Wednesday bring support for physical security keys that provide additional protection for your Apple ID.
The feature, which supports FIDO Certified security keys and will be introduced to the public in 2023, will provide users with the option to add a third-party security key to their account, which will be required for authentication when logging into a new device or otherwise accessing an Apple ID.
The Security Key replaces the verification codes that are currently sent to Apple devices when logging into another device. Apple says that physical security keys provide strong protection against phishing and unauthorized account access.
To set up a Security Key on devices running the betas, go to “Apple ID” -> “Security Keys” and follow the instructions.
(Via MacRumors)