How to Securely Connect AWS, Azure, and GCP in a Multi-Cloud Setup

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Connecting workloads across AWS, Azure, and Google Cloud Platform is possible but complex, as each provider uses a structurally different networking model that cannot be directly mapped onto another. GCP's VPC is globally scoped by default, while AWS and Azure use region-scoped networks, meaning engineers fluent in one platform can make incorrect assumptions when working across all three. Security gaps most commonly emerge at the seams between platforms, where single-platform security reviews fail to see the full picture. Organizations can link clouds via VPN, dedicated interconnects, or third-party networking platforms, each carrying distinct tradeoffs in cost, performance, and management complexity. Choosing the right connectivity approach depends on the volume and latency sensitivity of cross-cloud traffic a given organization actually needs to support.

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