AWS Identity and Access Management (IAM) provides a secure way to manage access to AWS services and resources. Through IAM, you can create and oversee AWS users and groups while setting permissions to regulate their access to various AWS resources. This feature comes at no extra cost as part of your AWS account; however, you may incur charges based on the usage of other AWS services by your users. IAM empowers your users to manage access not only to AWS service APIs but also to specific resources based on defined permissions. Additionally, you can implement specific conditions that govern how users access AWS, such as time restrictions, originating IP addresses, SSL usage, and requirements for multi-factor authentication (MFA). To enhance the security of your AWS environment, consider utilizing AWS MFA, which is a no-cost feature that adds an extra layer of security beyond traditional username and password credentials. By requiring users to possess a hardware MFA token or an MFA-compatible mobile device to enter a valid MFA code, you significantly improve the protection of your AWS resources. Ultimately, adopting these security measures is essential for maintaining a secure and efficient cloud infrastructure.