Some of the important points about AWS IAM are as follows:

1. A new User in IAM does not have any permission.

2. AWS IAM assigns an Access Key and a Secret Access Key to a new

User.

3. An Access Key cannot be used to login to AWS Console.

4. We use Access Key to access AWS via an APIs or Command Line

interface.

5. IAM is a universal application. It is common across all the regions in

AWS.

6. When we first setup our AWS account, we get a root account that has

complete Admin access.

https://www.simplilearn.com/tutorials/aws-tutorial/aws-iam#:~:text=IAM%20enables%20you%20to%20manage,them%20access%20to%20the%20service.