To maintain security efficacy of its public cloud resources by using native tools, a company...

To meet the company's requirements - minimizing changes to the cloud environments, optimizing compute resources, and unifying security policies - the best approach is to deploy Cloud NGFW solutions natively for AWS and Azure while managing policies centrally with Panorama.

In Azure, using Cloud NGFW for Azure deployed within vNETs allows traffic to be routed through security appliances efficiently without requiring a complete re-architecture. This approach aligns with Azure's existing routing mechanism while maintaining security.

In AWS, deploying Cloud NGFW for AWS in a centralized Security VPC and integrating it with AWS Transit Gateway enables traffic inspection for all connected VPCs without modifying individual workloads. This method ensures efficient scaling and minimal infrastructure changes while maintaining security consistency.