Further reading

• The AWS Root User: https://docs.aws.amazon.com/IAM/latest/UserGuide/id_root-user.html
• AWS Security Credentials: https://docs.aws.amazon.com/general/latest/gr/aws-security-credentials.html
• IAM Service Limits: https://docs.aws.amazon.com/IAM/latest/UserGuide/reference_iam-limits.html
• IAM Policies and Permissions: https://docs.aws.amazon.com/IAM/latest/UserGuide/access_policies.html
• IAM Best Practices: https://docs.aws.amazon.com/IAM/latest/UserGuide/id_root-user.html