There are also some limitations to which devices and services you can use these keys with. To start, you’ll need to maintain two FIDO Certified security keys at all times if you want to use the feature, because Apple doesn’t want you to be locked out of your account if you lose one. Apple added support for security keys with iOS 16.3 for iPhone, iPadOS 16.3 for iPad, and macOS Ventura 13.2 for Mac.Īpple being Apple, there are some quirks to the process. Rather than use that code, you can now plug a security key into your iPhone, iPad, or Mac to authenticate yourself - after providing the correct password. Up until now, Apple ID’s two-factor authentication would send you a six-digit code to a trusted device when trying to log into your Apple ID. That way, in the event that someone steals your key, they still won’t be able to access your account without the secret code. Of course, theft still happens, which is why experts recommend you combine security keys with a second form of authentication, like a password or a PIN. By ensuring your key remains safely on your person, the chance of a hack dramatically decreases. The benefits here are evident: If someone wants to break into your account, they need access to your physical security key to do so. Rather than rely on an SMS code or an authenticator app to prove your identity, you connect your security key to your device to authenticate instead. Once set up, you can use a security key as an alternative form of two-factor authentication (2FA).

In short, they’re a small piece of hardware resembling a USB thumb drive that can be used to authenticate yourself when signing into an account or device. Security keys have been around since long before Apple decided to implement them into Apple ID. It’s the best way to protect your account. While code-based two-factor authentication (2FA) has been Apple’s go-to way to protect your account for years, with the latest update to iOS 16.3, you can now use physical security keys to lock up your Apple ID from would-be intruders. Keeping your Apple ID safe is obviously paramount. If it is compromised, bad actors can access your iCloud information, see your location, or outright steal your devices from you. If you have an iPhone, iPad, or Mac, your Apple ID is among your most important digital accounts.

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