Capability 02

Security Architecture

Security designed in from the first diagram, not bolted on after the fact.

Most security incidents exploit architecture, not zero-days: flat networks, implicit trust, and segmentation that exists on a slide but not in the data plane. Security that works is a property of the design, applied consistently at every boundary.

Foundry builds Zero Trust into the network itself, identity-driven access, enforced segmentation, and a firewall strategy that is coherent across the estate rather than a patchwork of point decisions. We design for assurance you can demonstrate to auditors and regulators.

The same discipline extends to operational technology. Industrial control systems are segmented into zones and conduits to IEC 62443, the boundary between IT and OT is engineered rather than assumed, and the availability of the process is treated as a security requirement, not an afterthought.

What We Deliver

Scope, specified.

Zero Trust Architecture

Identity-based access with least privilege enforced at every boundary, removing implicit trust between zones, sites and users.

Network Segmentation

Macro- and micro-segmentation that bounds blast radius and contains lateral movement, mapped to your risk model.

Network Access Control

Posture-aware admission with Cisco ISE, devices and users authenticated and authorised before they touch the network.

Firewall Strategy

Consistent policy, ruleset rationalisation and segmentation enforcement across Palo Alto, Fortinet and Cisco estates.

Secure Remote Access

VPN and zero-trust access designs with strong authentication and endpoint posture, built for a distributed workforce.

OT & ICS Security

IEC 62443 zones and conduits and Purdue-model segmentation for industrial control systems, with an industrial DMZ so IT and OT exchange only what they must.

Security Architecture Review

Independent assessment of segmentation, trust boundaries and policy, with a prioritised remediation roadmap.

How We Engage

A disciplined path.

  1. 01

    Model

    We define trust boundaries, data flows and the threat model the architecture has to hold against.

  2. 02

    Design

    Segmentation, identity and policy are designed as one system, with enforcement points placed deliberately.

  3. 03

    Enforce

    Policy is translated into concrete configuration on NAC, firewalls and the fabric, design becomes data plane.

  4. 04

    Assure

    We validate the controls behave under test and produce the evidence needed for audit and accreditation.

Outcomes

What changes.

Least-privilege

Access granted by identity and posture, never by network location alone.

Contained

Lateral movement bounded by enforced segmentation, not hope.

Auditable

Controls you can demonstrate to regulators and accreditors.

Technologies
Zero TrustCisco ISE (NAC)Palo Alto NetworksFortinetCisco FirewallsCisco UmbrellaDuo MFAMicrosegmentationIEC 62443Purdue Model / Industrial DMZ

Engineering-led from the first conversation.

You talk to the architect who will design it. Bring us the security architecture problem and we'll respond with engineering judgement.

Discuss your project