What should be done to secure the root user?
Create IAM users for daily administrative tasks. Disable the root user.
Create IAM users for daily administrative tasks. Enable multi-factor authentication on the root user.
Generate an access key for the root user. Use the access key for daily administration tasks instead of the AWS Management Console.
Provide the root user credentials to the most senior solutions architect. Have the solutions architect use the root user for daily administration tasks.
Explanations:
While creating IAM users for daily administrative tasks is a good practice, disabling the root user is not possible. The root user is essential for account management and must remain enabled for certain tasks.
Creating IAM users for daily tasks and enabling multi-factor authentication (MFA) on the root user significantly enhances security. MFA adds an additional layer of protection, making unauthorized access more difficult.
Generating an access key for the root user is not recommended as it can expose the account to security risks. The root user should not be used for daily administration tasks; IAM users should be used instead.
Providing root user credentials to a single individual, even a senior architect, poses a significant security risk. The root user should only be used in specific situations, and daily tasks should be performed using IAM users to limit access and permissions.
As I understand it, the answer is:
Create IAM users for daily administrative tasks. Enable multi-factor authentication on the root user.