What is IAM?

AWS Identity and Access Management (IAM) enables you to manage access to AWS services and resources securely. With IAM, you can create and manage AWS users and groups, and use permissions to allow or deny their access to AWS resources.

Key Concepts

• Users: Represents an individual or application that interacts with AWS services.
• Groups: A collection of users with common permissions.
• Policies: Documents that define permissions. Policies are attached to users, groups, or roles.

Best Practices for IAM

Least Privilege Principle:

Grant only the permissions necessary for users to perform their tasks.

Use Groups:

Manage permissions by assigning users to groups rather than attaching policies directly to individual users.

Enable MFA:

Enhance security by enabling Multi-Factor Authentication (MFA) for users.

Rotate Credentials Regularly:

Regularly rotate access keys and passwords to reduce the risk of compromised credentials.

Monitor IAM Activity:

Use AWS CloudTrail to monitor IAM activities and detect suspicious behavior.