The Network Segmentation and Microsegmentation solution includes the design and implementation of logical architecture intended to divide the network environment into isolated domains, with granular control of communication between users, devices, and applications.

Segmentation aims to reduce the attack surface, prevent lateral movement of threats, and establish access policies based on context and operational criticality.

A3A Engenharia de Sistemas develops each solution based on asset mapping, communication flow analysis, and classification of criticality levels, ensuring controlled isolation between corporate environments, industrial systems, CCTV, servers, OT networks, and other sensitive domains.

SCOPE OF WORK

Within the scope of Network Segmentation and Microsegmentation, A3A Engenharia de Sistemas can operate in the following areas:

Planning and Architecture

  • Inventory and classification of assets
  • Mapping of communication flows between systems
  • Definition of security zones and domains
  • Structuring of VLANs, ACLs, and segmentation policies
  • Definition of east-west traffic control model

Implementation and Enforcement

  • Configuration of segmentation on network devices and firewalls
  • Application of communication restrictions by profile and context
  • Implementation of isolation between critical workloads
  • Integration with identity and access control policies
  • Technical supervision of migration between domains

Monitoring and Governance

  • Validation of allowed and blocked flows
  • Monitoring of anomalous movement between segments
  • Technical documentation of segmentation policy
  • Periodic review of access rules and exceptions

Evolution and Optimization

  • Adaptation to new environments or applications
  • Refinement of granular control policies
  • Integration with Zero Trust strategies
  • Expansion to cloud and hybrid environments

APPLICATIONS AND ENVIRONMENTS

The solution applies to:

  • Corporate networks
  • Critical infrastructures
  • Industrial plants with IT/OT integration
  • Electronic security systems
  • Data centers
  • Environments with high exposure to lateral movement risks

The architecture is sized to ensure controlled isolation, reduction of attack propagation, and preservation of operational continuity in sensitive environments.