Learn how to optimize AWS VPC Interface Endpoints for both security and cost-effectiveness in this 23-minute conference talk from fwd:cloudsec. Discover the centralized access pattern for sharing Interface VPCEs across multiple VPCs while maintaining robust security controls. Explore VPC connectivity options including VPC Peering and Transit Gateway, understand policy limitations and interactions between VPCE policies, IAM-policies, and resource-based policies. Master the implementation of IAM policy condition keys for VPC and CIDR block restrictions, enabling subnet-level controls. Through a live demonstration, gain practical insights into configuring various VPCE policies within a centralized architecture, enabling distinct permissions for each subscribed VPC while achieving cost optimization. Presented by Meg Ashby, Senior Cloud Security Engineer at Alloy, who brings extensive experience in AWS security and software engineering from her work at Marcus by Goldman Sachs.