Amazon Web Services Identity and Access Management (IAM) is a service that helps you manage access to your AWS resources securely. It allows you to create and manage users, groups, and permissions, ensuring that only authorized individuals can access specific resources. This helps protect sensitive data and maintain compliance with security policies. With IAM, you can define who can do what in your AWS environment. You can set up roles and policies that grant or restrict access based on the needs of your organization. This flexibility makes it easier to manage permissions as your team and projects grow.