How to turn on 2-factor authentication for Apple ID?

How to turn on 2-factor authentication for Apple ID?

Two-factor authentication is an extra layer of security for your Apple ID designed to ensure that you're the only person who can access your account, even if someone knows your password. Without this feature enabled, you cannot log in to Apple Developer.



Turn on two-factor authentication for your Apple ID

- If 2-step verification is already enabled, it must be first disabled in order to enable 2-factor authentication.
- Some Apple IDs created in iOS 10.3 or macOS 10.12.4 and later are protected with two-factor authentication by default. In this case, you see that two-factor authentication is already turned on. 

If you're using an iPhone, iPad, or iPod touch

Step 1: Turn on two-factor authentication in Settings.

If you're using iOS 10.3 or later: 
  1. Go to Settings > [your name] > Password & Security.   
  2. Tap Turn On Two-Factor Authentication.  
  3. Tap Continue.  
If you're using iOS 10.2 or earlier: 
  1. Go to Settings > iCloud.   
  2. Tap your Apple ID > Password & Security.   
  3. Tap Turn On Two-Factor Authentication.  
  4. Tap Continue.  
You might be asked to answer your Apple ID security questions.

Step 2: Enter and verify your trusted phone number.  
  1. Enter the phone number where you want to receive verification codes when you sign in. You can choose to receive the codes by text message or automated phone call.  
  2. When you tap Next, Apple sends a verification code to the phone number you provided.   
  3. Enter the verification code to verify your phone number and turn on two-factor authentication. 

If you're using an iMac with OS X El Capitan or later



Step 1: Go to Apple () menu > System Preferences > iCloud > Account Details. 
Step 2: Click Security.
Step 3: Click Turn On Two-Factor Authentication. 

What if you don't have any of Apple devices?

Apple only allows 2-factor authentication to be turned on from an iOS device or a Mac. Once enabled, you can use SMS messages or automated phone calls for confirmation codes. If you don’t have any of Apple devices, that will be a difficult situation and we recommend you to contact Apple support for assistance. 

That said, you can find a friend, relative, or colleague who owns an Apple device and borrow it to set up 2-factor authentication. After that, just log out of your Apple ID on the device, return it to your friend or relative, and you have 2-factor authentication turned on.

Take note of the following:
  1. If 2-step verification is already enabled, it must be first disabled in order to enable 2-factor authentication.
  2. Keep in mind that logging out of an Apple ID from an Apple device may result in unintended consequences, including loss of data, contacts, notes, etc. Hence, you should back up data and keep a copy of it to protect data. 
  3. You should add more than one trusted phone numbers just in case you lose access to your primary trusted phone number.

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