Answer: AWS Firewall Manager

## Explanation AWS Firewall Manager is the correct service for managing security groups across multiple AWS accounts in one centralized place. ### Why AWS Firewall Manager? - **Centralized Security Management**: Firewall Manager allows you to centrally configure and manage firewall rules across multiple AWS accounts and resources - **Security Group Management**: Specifically designed to manage security groups, web ACLs, AWS Shield Advanced, and VPC security groups across your organization - **Cross-Account Management**: Works with AWS Organizations to provide security policy management across all accounts in your organization ### Why not the other options? - **AWS Config**: Primarily for compliance auditing and resource configuration tracking, not for centralized security group management - **AWS Organizations**: Used for account management and policy-based management, but doesn't provide specialized security group management capabilities - **AWS Trusted Advisor**: Provides best practice recommendations and cost optimization advice, but doesn't offer centralized security group management ### Key Benefits of AWS Firewall Manager: - Automate security group administration - Enforce consistent security policies - Monitor compliance across all accounts - Simplify security management at scale

Author: Ritesh Yadav