How does Apple iphone turn on dual authentication?

What is the dual authentication of Apple iphone? How to open Apple iphone dual authentication? I think accounts are very important. Once your security information is leaked, it will be violated. Today, Keke Bian Xiao will teach you how to improve the safety level of equipment. Let's have a look!

How does Apple iphone turn on dual authentication?

Two-factor authentication means that when you log in to a new device with an Apple ID for the first time, you need to provide two kinds of information: your password and the six-digit verification code automatically displayed on the device you trust. After entering the verification code, you confirm that you trust this new device.

1. Enter to set your name] Password and security.

2. Click "Turn on Two-factor Authentication" to continue, and then enter the phone number you want to use to receive the verification code when logging in. You can choose to receive the verification code by SMS or automatic voice call.

3. After clicking Next, Apple will send a verification code to the phone number you provided.

4. Enter the verification code to verify your phone number, and then turn on two-factor authentication.

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