[Hardware] iOS 16.3 now supports hardware security keys

[Douma]

If you want to keep your data safe, a password only goes so far even if you have two-factor authentication enabled. Using a physical security key can lock your account down even further, and Apple(opens in new tab) has just launched security key support for Apple ID and iCloud accounts in iOS 16.3. As long as you don’t use Windows, that is. Security keys are essentially an alternative to the usual six-digit two-factor authentication codes which Apple typically provides by SMS or as a prompt on an approved device. The benefit to account security is that you need to physically have the key before you can log in. That protects from hacking attempts, or losing your account to phishing and social engineering scams. Of course, losing the key means you could get permanently locked out of your account. That’s presumably why Apple requires you to set up at least two security keys, in case one of them gets lost or stolen. So you better keep your spare somewhere safe and memorable. Apple lets you add up to six keys to a single account. Support for security keys is coming as part of iOS 16.3. iPadOS 16.3 and MacOS 13.2, with support for iPhone, iPads and Macs. You’ll need to have two-factor authentication already set up to get going, as well as two FIDO certified security keys that actually work with Apple devices. 

Support for security keys is coming as part of iOS 16.3. iPadOS 16.3 and MacOS 13.2, with support for iPhone, iPads and Macs. You’ll need to have two-factor authentication already set up to get going, as well as two FIDO certified security keys that actually work with Apple devices. There are some caveats you should be aware of, though. The main one is that Apple doesn't support security keys on Windows, so setting one up would lock you out of your iCloud account on a Windows machine. Child accounts and Managed Apple IDs don’t support security keys either. Finally, logging into an Apple TV, Apple Watch or Homepod after setup requires you to have an iPhone or iPad that’s been updated to iOS or iPad OS 16.3 or higher. You’ll also need physical access to your security key when you’re logging into your Apple account from a new device or browser, when you reset your Apple password, when you unlock your Apple ID, or should you need to add and remove security keys from your account.

https://www.tomsguide.com/news/ios-163-hardware-security-keys