Welcome to your interview.
The question is on your right: Evaluate Envoy Sidecar Security Trade-offs. Take a moment with it first.
Talk your thinking through with me if you like - when you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes). Discussion and graded submissions share your five interviewer interactions, so spend them well.
You own security architecture for a Kubernetes-based microservices platform that uses Envoy sidecars for service-to-service mTLS, authorization checks, and traffic policy enforcement. Several teams want to expand sidecar adoption because it simplifies application code and centralizes controls, but a recent incident involved a misconfigured proxy policy that exposed an internal endpoint to a broader set of workloads than intended. You need to decide when sidecars improve security and when they increase attack surface or operational risk.
How would you evaluate the security trade-offs of using Envoy sidecar proxies, and what architecture and controls would you put in place to keep the model defensible at scale? Be explicit about what threats sidecars mitigate, what new risks they introduce, and how you would detect failures or policy drift.