Network zero trust: segmenting without stopping the business

From perimeter to flows

The zero trust model does not trust any connection simply because it originates inside the network: every access is verified based on identity, device and context. In networking, this means microsegmentation, per-flow rules and inspection of traffic between segments.

The risk of getting it wrong

Segmentation designed without knowing application dependencies blocks legitimate services and is soon bypassed with exceptions. That is why the work starts by mapping real flows and proceeds in phases, measuring the impact at each step.

A four-step path

1. Mapping of assets, flows and application dependencies.
2. Definition of zones and per-flow rules.
3. Gradual introduction in monitoring mode, then blocking.
4. Continuous monitoring of lateral movement attempts by the Cyber Defense Center.