Which service is best for comprehensive security data management in AWS?

AWS Security Hub is the best service for comprehensive security data management in AWS because it serves as a centralized platform that aggregates, organizes, and prioritizes security alerts and findings from multiple AWS services and third-party solutions. Security Hub allows users to gain a holistic view of their security posture across their AWS accounts and resources, making it easier to identify potential security risks.

With Security Hub, users can enable integration with various AWS security services such as AWS GuardDuty, Amazon Inspector, AWS Config, and AWS Firewall Manager. It also provides a dashboard where users can visualize security alerts and findings, facilitating a more efficient response and remediation process. The continuous analysis and automated updates help organizations maintain compliance with industry and regulatory standards.

In contrast, while AWS Config is focused on resource configuration and compliance management, and AWS GuardDuty specializes in threat detection and monitoring, Security Hub combines these functionalities to offer a broader perspective on security status. AWS Systems Manager, on the other hand, is more geared towards operational management and automation rather than directly managing security data.