Microsegmentation is one of those security concepts everyone talks about but few implement well. The theory is straightforward — split your network into tiny zones and control traffic between them — but the practice is full of edge cases, tooling traps, and organizational challenges that documentation never covers.
microsegmentation.uk is a new blog focused on bridging that gap. Real-world microsegmentation for real-world environments.
What's on the blog
- Implementation guides — Step-by-step walkthroughs for deploying microsegmentation in Kubernetes, cloud VPCs, and on-prem data centers. No hand-waving, just the concrete steps.
- Policy-as-code workflows — How to treat your segmentation policies like application code. CI/CD pipelines, GitOps reconciliation, automated validation with OPA and Conftest.
- Cloud-native security — How microsegmentation fits into the broader zero trust architecture. East-west traffic protection, workload identity, and service mesh integration.
- Tool comparisons — Honest assessments of the major platforms (Illumio, Guardicore, Calico, Cilium, NSX) with real performance and operational data.
The content is written for security engineers who actually build and maintain these systems — not slideware, not vendor marketing.
Why this matters
The traditional perimeter model is dead. Workloads move, scale, and ephemerally exist across cloud providers. Microsegmentation is the only practical way to enforce least-privilege networking at scale. But it only works if you get the implementation right — and that requires detailed knowledge that most training materials gloss over.
The blog lives alongside companion resources in adjacent security domains at aisecurities.uk (AI security) and waap-security.uk (WAAP security).
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