How you can protect your Amazon.com account with two-step verification (2SV) Amazons advanced security settings consist wholly of 2SV. You can use this page to add a mobile number, change your password, or manage your accountSV settings. Amazon might prompt you to reenter your login information and click the Sign in button. You will need to choose by which method you would like to receive verification codes via text message (SMS) or an authenticator app.”]
Source: https://grahamcluley.com/protect-amazon-account-step-verification-2sv/