Add or remove trusted phone numbers on Mac
A trusted phone number is the phone number used to verify your identity when you sign in on a different device or browser.
You must verify at least one trusted phone number when you enrol in two-factor authentication. You should also consider verifying other phone numbers you can access, such as a home phone or a number used by a family member or close friend.
On your Mac, choose Apple menu
If you don’t see your name, click Sign in with your Apple ID to enter your Apple ID or to create one.
Click Password & Security on the right, then do any of the following:
Add a phone number: Click the Add button
below Trusted Phone Numbers. If prompted, enter your Apple ID password or Mac login password. Enter a phone number that can be used to verify your identity. Select whether you want to be reached by text or phone call, then click Continue. Enter the code sent to the phone number and click Next. Your trusted phone numbers appear in a list.Remove a phone number: Select a phone number, click the Remove button
, then click Remove.Note: You must have at least one trusted phone number when you use two-factor authentication. If you only have a single trusted phone number, it can’t be removed.
You can also manage your trusted devices and phone numbers by signing in to your Apple ID account page.