Which AWS service helps in managing user access to AWS resources?

AWS Identity and Access Management (IAM) is the service specifically designed to help manage user access to AWS resources. It provides a comprehensive platform for creating and managing AWS users and groups, as well as defining permissions for those users to control what actions they can perform on AWS resources.

With IAM, you can establish fine-grained access controls by creating policies that grant or deny permissions to specific AWS services and resources at the level of individual users, groups, or roles. This means you can tailor access to meet the security and operational needs of your organization, ensuring that users have the necessary permissions to perform their tasks without exposing your AWS resources to unnecessary risks.

IAM also integrates well with other AWS services and is essential for managing access securely across your AWS infrastructure. It is fundamental for any organization looking to follow best practices in security and compliance while leveraging AWS services.

The other options listed have useful functions in the AWS ecosystem but serve different primary purposes. For instance, AWS Organizations is primarily for managing multiple AWS accounts and consolidating billing, while AWS STS (Security Token Service) is used for temporary security credentials. AWS Single Sign-On (SSO) allows for centralized access management across multiple AWS accounts and applications but does not focus solely on the direct management of user