AWS Identity and Access Management (IAM)
It allows you to securely manage AWS services and resources using a command line or without one. You can create and manage AWS users, groups, policies, and roles with AWS IAM. Permissions can also be used to provide or deny access to certain AWS services such as EC2, Lambda, S3, CloudTrail, and many others.
IAM Key Features
The four features of IAM are as follows;
Granular control
Multi-factor authentication (MFA)
Temporary credentials
Free to use
Learn AWS IAM: Complete Guide & Key Features on Rizwan Rafiq's website.