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08/06/2026 5:00 pm
TL;DR: Microsegmentation limits east-west movement by isolating workloads and enforcing granular policy, but it depends on accurate architecture mapping, traffic observation, and phased rollout, according to StrongDM. The core lesson is that segmentation strengthens Zero Trust only when teams understand workload behaviour well enough to avoid blind spots.
NHIMG editorial — based on content published by StrongDM: A Beginner’s Guide to Microsegmentation
By the numbers:
- Cybercrime costs will grow 15% per year over the next five years.
Questions worth separating out
Q: What breaks when microsegmentation is applied without full environment visibility?
A: Teams create policy gaps, hidden dependencies, and overconfident boundaries.
Q: Why does microsegmentation matter for Zero Trust architectures?
A: Zero Trust assumes no workload or connection is trusted by default, and microsegmentation is one of the practical ways to enforce that assumption in a live environment.
Q: What do security teams get wrong about microsegmentation?
A: They often treat it as a one-time network redesign instead of an iterative control that depends on current workload behaviour.
Practitioner guidance
- Map workload dependencies before enforcement Document application topology, service-to-service flows, and critical data paths before applying microsegmentation rules.
- Observe real traffic before writing policy Capture communication patterns in production or representative environments so policy reflects what workloads do, not what architecture diagrams assume.
- Roll out segmentation in phases Start with coarse zone boundaries, then narrow to application-level rules, and only then move toward fine-grained workload controls.
What's in the full article
StrongDM's full blog covers the operational detail this post intentionally leaves for the source:
- Step-by-step examples of how to segment north-south and east-west traffic in different infrastructure models.
- A practical comparison of network segmentation versus microsegmentation for teams planning phased rollout.
- Implementation challenges around architecture mapping, policy discovery, and workload behaviour that need hands-on treatment.
- Best-practice guidance on applying zero-trust policy to cloud assets without overcomplicating the environment.
👉 Read StrongDM's beginner's guide to microsegmentation and Zero Trust →
Microsegmentation and east-west traffic: are your controls keeping up?
Explore further
08/06/2026 6:56 pm
Microsegmentation is a trust-boundary problem before it is a tooling problem. The article correctly frames segmentation as a way to limit lateral movement, but the governance issue is deeper: most enterprises still operate as though east-west traffic inside the environment deserves conditional trust. That assumption breaks down as workloads multiply across cloud and hybrid estates. Practitioners should treat segmentation as a trust model redesign, not a firewall project.
A few things that frame the scale:
- 97% of NHIs carry excessive privileges, increasing unauthorised access and broadening the attack surface, according to Ultimate Guide to NHIs.
- Only 5.7% of organisations have full visibility into their service accounts, which is why segmentation without identity visibility remains incomplete.
A question worth separating out:
Q: How should organisations phase in microsegmentation without disrupting operations?
A: Begin with broad zones around the most sensitive workloads, validate traffic patterns, then narrow policy based on observed dependencies. This reduces operational risk while giving teams time to reconcile segmentation with how applications actually communicate.
👉 Read our full editorial: Microsegmentation is still a zero trust control gap, not a cure-all
