AWS Identity And Access Management (IAM)

AWS IAM is the heart of AWS security because it empowers you to control access by creating users and groups, assigning specific permissions and policies to specific users, Managing Root Access Keys, setting up MFA Multi-Factor authentication, for additional security, and so much more. And the cherry on top, IAM is free to use!

https://k21academy.com/amazon-web-services/aws-solutions-architect/aws-identity-and-access-management-iam/