You must verify at least one trusted phone number to enroll in two-factor authentication.
Also, be aware that although the forums community is an excellent resource, community members are not Xbox Support agents and provide informational assistance only.
To get help in the Xbox Support forums, go to and choose the one that fits your issue.
If your account isn't eligible for two-factor authentication, you can still use two-step verification to protect your information.
Two-factor authentication significantly improves the security of your Apple ID.
You can use this number if you temporarily can't access your primary number or your own devices.
A verification code is a temporary code sent to your trusted device or phone number when you sign in to a new device or browser with your Apple ID.Two-factor authentication is available to i Cloud and i Tunes users with at least one device that's using the latest i OS or mac OS. You can follow these steps on your i Phone, i Pad, or i Pod touch to turn on two-factor authentication.Enter the phone number where you want to receive verification codes when you sign in.By entering the code, you're verifying that you trust the new device.For example, if you have an i Phone and are signing into your account for the first time on a newly purchased Mac, you'll be prompted to enter your password and the verification code that's automatically displayed on your i Phone.You can also get a verification code from Settings on your trusted device.