Which service generates IAM policies based on access activity in CloudTrail logs?

The IAM Access Analyzer is specifically designed to evaluate your AWS resource policies and can generate IAM policies based on access activity recorded in CloudTrail logs. By analyzing these logs, the service identifies the permissions that are currently being utilized, allowing you to create more precise policies that enhance security. This helps ensure that permissions are granted only to the necessary users, reducing the risk of overly permissive access.

In contrast, other services focus on different aspects of access management. While AWS IAM Identity Center helps manage access to AWS accounts and applications, it does not generate IAM policies from access activity. AWS Config is more concerned with monitoring configuration changes in your AWS resources rather than generating policies based on access logs. Finally, Amazon CloudWatch primarily provides monitoring and observability of AWS resources and applications; it does not deal directly with IAM policy generation or analysis. This focused purpose of the IAM Access Analyzer distinguishes it as the appropriate choice for generating IAM policies from CloudTrail logs.