Microservices security is about making distributed systems understandable and enforceable. The hard parts are identity, traffic boundaries, runtime behavior, deployment integrity, and enough observability to investigate what happened across many small services.
Areas To Cover
- How Security Works in a Monolithic Application
- Challenges of Securing Microservices
- Service-to-service authentication and authorization
- API gateway and ingress security patterns
- Service mesh security, mTLS, and policy enforcement
- Container image and runtime security
- Secrets management for distributed services
- Kubernetes and ECS workload isolation
- Distributed tracing, logs, and detection engineering
- CI/CD controls for service ownership and deployment integrity
Review Prompts
- Which services can call each other, and how is that enforced?
- Are service identities short-lived, scoped, and observable?
- Can a compromised service move laterally to unrelated workloads?
- Are APIs protected consistently at ingress and service-to-service layers?
- Can responders trace one request across the full service path?