Ensure there are no VPC peering connections established with AWS accounts outside your AWS Organization in order to secure the peered VPC traffic to member AWS accounts only.
This rule can help you with the following compliance standards:
This rule resolution is part of the Cloud Conformity Security & Compliance tool for AWS
Having the VPC peering communication well configured to allow traffic only between the member accounts of your AWS Organization represents an effective way of keeping the organization resources private and isolated, and meet regulatory compliance. For example, if the cloud applications running in your AWS Organization are regulated by the healthcare industry, you may want to process and store any protected health information using only compliant AWS resources limited to your organization.
To determine if there are VPC peering connections established with AWS accounts outside your AWS Organization, perform the following:
Remediation / Resolution
To remove any VPC peering connections established with AWS accounts outside your AWS Organization, perform the following:
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You are auditing:
VPC Peering Connections To Accounts Outside AWS Organization
Risk level: Medium