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This lesson explains AWS Firewall Manager and how it centralizes security policy management across multiple AWS accounts. When you manage many AWS accounts, configuring the same firewall and security protections separately in each account becomes repetitive, error-prone, and hard to audit. Firewall Manager solves this by letting you define policies once and apply them consistently across your AWS Organization. Common operational pain points without a centralized approach:
  • Inconsistent rulesets across accounts and environments
  • Time-consuming, manual configuration and updates
  • Delayed response to threats while rules are propagated manually
  • Difficulty enforcing and auditing corporate security and compliance standards
A presentation slide titled "Firewall Manager" with a central building icon surrounded by colored circles listing problems like Inconsistent Rules, Complex Management, Time-Consuming Updates, Lack of Centralization, Delayed Response, and Compliance Challenges.

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What is AWS Firewall Manager?

AWS Firewall Manager is a centralized security management service that simplifies applying, auditing, and continuously evaluating network and application protection across accounts in an AWS Organization. Instead of repeating the same WAF rules, network firewall policies, or security group controls in every account, you create policies in a designated administrator account and Firewall Manager enforces them across member accounts. Firewall Manager can centrally manage policies for multiple AWS services, including: With Firewall Manager you create and maintain policy templates in one place; Firewall Manager applies them to existing resources and automatically enforces them for newly created resources that match the policy scope.
A diagram titled "Firewall Manager for Multiple Accounts" showing a central AWS Firewall Manager in the cloud applying firewall, encryption/access and shield/WAF icons to separate Production and Development account groups. It illustrates centralized security policy management across multiple AWS accounts.

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How Firewall Manager works (high level)

  1. Designate a Firewall Manager administrator account (management account or a delegated administrator).
  2. Create a policy (scope by OU, tag, or account) that targets one or more security services.
  3. Firewall Manager evaluates member accounts and resources, applies the policy, and continuously monitors compliance.
  4. When a policy is updated, Firewall Manager propagates changes and remediates non-compliant resources automatically (if configured).

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Key benefits and capabilities

A presentation slide titled "Firewall Manager – Features" showing four numbered panels with colored icons. The panels list: manage rules across an AWS Organization; manage WAF/AWS Shield Advanced and security groups; centralized security policy management; and audit trails and logging.
Important prerequisites and notes: Firewall Manager requires that your accounts are part of an AWS Organization and that a Firewall Manager administrator account is designated (either the Organizations management account or a delegated administrator). Some policy types require additional services enabled in member accounts — for example, Security Group policies and Network Firewall evaluation rely on AWS Config being enabled, and using Shield Advanced protections requires a Shield Advanced subscription for affected accounts.

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Common policy types and requirements

This overview should help you understand when to use AWS Firewall Manager to centralize and scale firewall, WAF, and DDoS protections across multiple AWS accounts.

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