If you've got a new phone or other mobile device, you can set it up for twoTwo-factor authentication (2FA) codes can be generated via email, an authenticator app on a moblie device, like a phone or tablet, or via an SMS (mobile phone only). If you receive 've been receiving 2FA codes via email but and you'd like to change to an authenticator app or SMS, see Changing your Switching between email and app 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. UI Expand |
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