Microsegmentation 

Solution Overview

Microsegmentation

Traditional flat networks are a gift to attackers: once inside the perimeter, they can move freely between servers, workstations, and databases with minimal friction. Microsegmentation eliminates this advantage by enforcing fine-grained, identity-based access controls between individual workloads — regardless of whether they share the same network segment, VLAN, or cloud VPC. Acentria's microsegmentation practice uses a software-defined approach that does not require network re-architecture and deploys at the hypervisor, container, or host level.

Our implementation begins with a comprehensive network flow visibility exercise: we deploy lightweight sensors to map all east-west communication flows across the environment — application to database, server to server, container to container — without requiring any network changes. This flow map becomes the foundation for a least-communication policy model that permits only explicitly required connections and blocks everything else. Policies are tested in simulation mode before enforcement to eliminate the risk of application disruption.

The security outcomes are dramatic. Clients that have deployed microsegmentation report that ransomware and malware campaigns that previously spread to dozens of systems are now automatically contained to the initially compromised host. Penetration testers consistently report that post-exploitation lateral movement — the activity that transforms a single compromised endpoint into an enterprise-wide breach — becomes effectively impossible in a well-segmented environment.

Impact Metrics