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iOS 16.3: Two security keys required to secure the Apple ID

Jan Johannsen
25.1.2023
Translation: machine translated

With the latest updates, Apple devices support security keys. However, you will need at least two USB sticks to set them up as a second factor for logging in.

With the update to iOS 16.3, iPadOS 16.3 and macOS 13.2, iPhones, iPads and Macs now support so-called security keys for two-factor authentication. Instead of a text message or email with a confirmation code, you use (USB) sticks to confirm your login. Apple wants you to set up at least two

Limitation of damage in the event of loss

The requirement to set up two security keys was discovered by MacRumors in a support document from Apple. The simple idea behind it: If you lose a stick, you are not completely locked out of your account. The security key in your hand replaces the six-digit code for login confirmation that Apple sends via text message or displays on your other devices. Without the USB stick, you're really screwed.

Google allows you to set up your accounts with just one key, but recommends using two. Apple allows you to set up a total of up to six security keys for your Apple ID. These must fulfil the FIDO standard. Apple recommends three models as examples: The YubiKey 5C NFC, which fits into Macs with its USB-C connector and works with iPhones via NFC. The YubiKey 5Ci with USB-C connector on one side and Lightning connector on the other. As the name suggests, the Feitan ePass K9 NFC USB-A fits into the USB-A ports of older Macs and has NFC on board for iPhones.

With iOS 16.3 and the other updates, Apple has made "Enhanced Privacy" available worldwide. End-to-end encryption of data in the iCloud was initially only possible in the USA with iOS 16.2.

Cover photo: Yubico

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