VPC with Cross Account Connections

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Last Updated:

April 21, 2022

An Amazon Virtual Private Cloud (VPC) has a cross-account VPC Peering Connection. A VPC peering connection is a networking connection between two VPCs that enables you to route traffic between them using private IPv4 addresses or IPv6 addresses. Instances in either VPC can communicate with each other as if they are within the same network. This can compromise a strong AWS account security strategy. VPC peering connections should only be used within the same account. Cross-account VPC peering connections should be removed.