PCI-DSS Serverless Payments on GCP: Confidential VMs, CEKM & Binary Authorization

Designing a PCI-DSS compliant serverless payments architecture on GCP means getting Confidential VMs, Cloud External Key Manager, and Binary Authorization working together — here's how to answer that in a senior interview. You'll learn: How Confidential VMs provide hardware-level memory encryption to satisfy PCI-DSS data-in-use requirements Why Cloud External Key Manager (CEKM) lets you hold encryption keys outside GCP's control — and what that means for scope reduction How Binary Authorization enforces cryptographic attestation so only verified container images reach your payment workloads The serverless boundary decisions (Cloud Run vs bare GKE) that affect your Cardholder Data Environment scope Common interview gotchas around shared responsibility, audit logging with Cloud Audit Logs, and VPC Service Controls for perimeter defence Keywords: PCI-DSS GCP architecture, Confidential VMs interview, Cloud External Key Manager, Binary Authorization Cloud Run, serverless payments compliance 🎧 Listen, then go deeper — DevOps & Cloud interview-prep ebooks at DevOpsInterview.Cloud