If you've got a new phone or other mobile device, you can set it up for two-factor authentication (2FA). If you receive 2FA codes via email but you'd like to change to an authenticator app, see Changing your two-factor authentication method. 2FA is only affected if you change the device you want to use, not your phone number. Because you can only receive codes on one device at a time, you'll need to change your 2FA device in the Security Centre. If you don't have access to your old device, you'll need to use a backup code to sign in, or get help to recover your account. |