After setting up and activating your account, you should be able to log in to the AWS console, which you can access at https://console.aws.amazon.com/console/home.
After logging in with your root credentials, the first thing you should do is immediately enable MFA access. This provides an extra level of security, ensuring that if your username and password are compromised, an attacker cannot access your account without possession of your MFA device (in our example, that means the Google Authenticator application on your smart phone).
To enable MFA for your root account, select the drop-down that specifies your account name (in my case, this is docker-in-aws) and select My Security Credentials:
Accessing My ...
