AWS Identity and Access Management
AWS Identity and Access Management lets you securely control who accesses your services and resources. It handles the concrete work of defining permissions and managing access policies across your AWS environment, ensuring that only authorized users and applications can interact with specific assets.
This fits teams needing granular control over cloud security without upfront costs, operating on a pay-as-you-go model. The catch is there is no free tier, so every identity and access operation incurs charges, which can add up quickly for smaller projects or those with high IAM activity.