Enforcing enterprise-wide preventive controls with AWS Organizations.

This article discusses how to enforce enterprise-wide preventive controls using AWS Organizations through three main policy types: Service Control Policies (SCPs), Resource Control Policies (RCPs), and Declarative Policies.

• Service Control Policies (SCPs) restrict IAM principals' access to services and resources across organization accounts
• Resource Control Policies (RCPs) control who can access resources across organization member accounts
• Declarative Policies ensure consistent configuration of AWS services across the organization

Key best practices include:

• Conducting readiness assessments before implementing policies
• Understanding quota limits
• Enforcing data perimeters
• Starting small and scaling gradually
• Automating policy validation and deployment

These policies help organizations manage security, compliance, and configuration across multiple AWS accounts effectively.