If you login to amazon.com and enable 2FA, then when you login to amazon.co.uk (same username etc.) it will ask you for the 2FA code. It seems if you have an ac

If you login to amazon.com and enable 2FA, then when you login to amazon.co.uk (same username etc.) it will ask you for the 2FA code. It seems if you have an account for one Amazon domain you can login to all with the same credentials.