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Network security

Network security that starts with the architecture.

A firewall rule set cannot compensate for a flat network. We design segmentation, boundary policy and remote access as one architecture, so a compromise in one zone stays in one zone.

Request a ConsultationAll cybersecurity
Where it fits
  • Corporate and multi-site enterprise networks
  • Healthcare estates with clinical and building systems on shared infrastructure
  • Industrial sites running OT and IT on one estate
  • Organisations with remote workers and third-party maintenance access
Rack-mounted network appliance with lit port indicators and fibre and copper leads
Network security

Our scope

What we do on these systems.

  1. 01Audit the existing estate: what is connected, what talks to what, and which traffic flows the organisation actually needs
  2. 02Design the zone model (user, server, OT, guest, management) with the traffic permitted between zones written down and justified
  3. 03Specify and configure firewalls at the zone boundaries, with rule sets built from the documented flows rather than accumulated exceptions
  4. 04Design remote access around identity and least privilege, including third-party and vendor maintenance connections
  5. 05Commission against a test plan that confirms blocked traffic is blocked, not just that permitted traffic passes
  6. 06Hand over rule-base documentation and a change procedure, so the design survives its first year of operation

Platform

What the system does.

  • Traffic between network zones restricted to documented, justified flows
  • Segmentation that contains a compromised device to its own zone
  • Building systems and OT held in separate zones from user and server networks by default
  • Stateful inspection and application-aware filtering at zone boundaries
  • Encrypted remote access tied to individual identity, with multi-factor authentication
  • Time-limited, logged vendor access to specific systems rather than the whole network
  • Central logging of permitted and denied traffic for investigation
  • Firewall pairs in high-availability configuration where the estate requires it
  • A rule base in which every rule has an owner and a recorded reason

Next step

Bring the complete environment into one conversation.

Tell us what you are planning, replacing, integrating or trying to stabilise. We will help define the right next step.

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