---
title: "Secure Defence Network Path Control | Control"
description: "Achieve total command over classified data paths in defence networks, enforcing physical separation between systems of different security levels. Discover."
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Recent Breaches 

Breaches 

[2026 PowerSchool 62.4M records ](https://www.bleepingcomputer.com)[2026 DISA Global Solutions 3.3M records ](https://techcrunch.com)[2026 Globe Life 850K records ](https://www.securityweek.com)[2026 Lidl GB Customer contact data ](https://www.theguardian.com/business/2026/jun/11/lidl-gb-third-party-data-breach)[2026 Asahi Group Production systems disrupted ](https://www.reuters.com/technology/cybersecurity/asahi-says-cyberattack-disrupted-operations-japan-2025-09-29/)[2026 Kido International 8K records ](https://www.bbc.co.uk/news/articles/c623d7v0e5xo)[2026 Collins Aerospace (RTX) Check-in and boarding disruptio... ](https://www.bbc.co.uk/news/articles/c789e7l1z7po)[2026 Jaguar Land Rover Production and IT systems disru... ](https://www.bbc.co.uk/news/articles/cx2gx8p3rzeo)[2026 Peter Green Chilled Order and logistics data ](https://www.bbc.co.uk/news/articles/c0k7yy8n3g5o)[2026 Adidas UK Customer contact details ](https://www.bbc.co.uk/news/articles/c78jkev1el2o)[2026 PowerSchool 62.4M records ](https://www.bleepingcomputer.com)[2026 DISA Global Solutions 3.3M records ](https://techcrunch.com)[2026 Globe Life 850K records ](https://www.securityweek.com)[2026 Lidl GB Customer contact data ](https://www.theguardian.com/business/2026/jun/11/lidl-gb-third-party-data-breach)[2026 Asahi Group Production systems disrupted ](https://www.reuters.com/technology/cybersecurity/asahi-says-cyberattack-disrupted-operations-japan-2025-09-29/)[2026 Kido International 8K records ](https://www.bbc.co.uk/news/articles/c623d7v0e5xo)[2026 Collins Aerospace (RTX) Check-in and boarding disruptio... ](https://www.bbc.co.uk/news/articles/c789e7l1z7po)[2026 Jaguar Land Rover Production and IT systems disru... ](https://www.bbc.co.uk/news/articles/cx2gx8p3rzeo)[2026 Peter Green Chilled Order and logistics data ](https://www.bbc.co.uk/news/articles/c0k7yy8n3g5o)[2026 Adidas UK Customer contact details ](https://www.bbc.co.uk/news/articles/c78jkev1el2o)

[View All →](/learn/breaches)

[![Firevault - offline secure storage, physically disconnected from the internet](/assets/logo-color-DBVl0KCg.png)](/)

Products

Solutions

[Why OSS](/why-oss)

More

[Help](/help)[Get started](/get-started)

Defence 

# National Security-Grade Network Severance and Isolation 

Defence networks carry the most sensitive information a nation possesses. The threat landscape includes the most capable adversaries on earth, operating with state-level resources and persistence.

-   Nation-state APTs
-   Cross-domain data leakage
-   Insider threat
-   Supply-chain implants

Schedule a Demo[Back to Control](/solutions/control)

![Defence operations centre with situational awareness displays](/assets/sector-square-defence-BuFAbR-h.jpg)

Exposure

How it worksExplore moreQuestions

The exposure in numbers 

01 

Classification boundary enforcement

100% Classification boundary enforcement 

02 

Cross-domain network reachability

Zero Cross-domain network reachability 

03 

Cleared personnel at every facility

SC/DV Cleared personnel at every facility 

04 

JSP 440 and NATO security compliance

Full JSP 440 and NATO security compliance 

The Challenge 

## Defence networks face state-level adversaries.

01 

### Nation-State Persistence

State-sponsored actors maintain persistent access campaigns against defence networks, investing years of effort to compromise a single classified system.

02 

### Cross-Domain Risks

Information sharing between classification levels creates network paths that, if compromised, could allow classified data to traverse to lower classification domains.

03 

### Legacy Military Systems

Decades-old military systems were designed for physical isolation but are increasingly connected to modern networks for interoperability.

Defence

> Defence information requires defence-grade protection. Logical separation managed by software is not sufficient when the adversary has the resources and patience to find and exploit every configuration error.

The Scenario

### Scenario: Cross-Domain Boundary Compromise

A state-sponsored group identifies a misconfiguration in a cross-domain solution connecting SECRET and OFFICIAL networks. The misconfiguration allows carefully crafted data packets to bypass content inspection, creating a covert channel for exfiltrating classified material. The channel operates for months at low bandwidth, evading detection systems tuned for bulk data movement. With Control, cross-domain boundaries are physically enforced. Data movement between classification levels requires multi-party authorisation with full content verification. The covert channel cannot exist because the physical path between domains does not exist outside authorised transfer windows.

"Our cross-domain solution had been certified and accredited. It passed every penetration test. But the misconfiguration that enabled the covert channel was in a feature that had been added after certification. The accreditation process had not caught up."

Module deployment · defence network 

## Where each Control module is deployed across admin, mission and classified domains.

Defence estates separate admin networks from mission systems and classified enclaves. Control puts a boundary between each domain so the right things stay reachable and the wrong things do not. Sovereign data lives behind its own firebreak.

Grounded in MOD Secure by Design, NCSC for defence, NIST SP 800-171 and JSP guidance available in the public domain.

D0 

Internet / Cloud

External

External services 

Cloud 

![FV-Firebreak module icon](/assets/firebreak-icon-7zSCkB1t.png)Firebreak ![FV-Validate module icon](/assets/vault-icon-CD3Pv4ri.png)Validate 

External traffic stops at the admin perimeter.

D1 

Admin network

Admin

Office IT 

Email 

SOC 

Day-to-day business systems.

Day-to-day business systems.

![FV-Isolate module icon](/assets/isolate-icon-B9t8fl3o.png)Isolate ![FV-Firebreak module icon](/assets/firebreak-icon-7zSCkB1t.png)Firebreak 

Admin cannot reach mission directly.

DMZ 

Cross-domain DMZ

DMZ · trust boundary

Guard 

Data diode 

One-way and brokered exchange between domains.

One-way and brokered exchange between domains.

![FV-Validate module icon](/assets/vault-icon-CD3Pv4ri.png)Validate ![FV-Transfer module icon](/assets/transfer-icon-DqGa0PQI.png)Transfer 

Cross-domain movement is checked and routed.

D2 

Mission planning

Mission

Planning systems 

Logistics 

![FV-Execute module icon](/assets/execute-icon-kJl5Gtmk.png)Execute 

Mission actions approved before they move.

D3 

Mission execution

Mission

Command & control 

ISR feeds 

Operational tempo, not office hours.

Operational tempo, not office hours.

![FV-Isolate module icon](/assets/isolate-icon-B9t8fl3o.png)Isolate ![FV-Lock module icon](/assets/lock-icon-UU3vOaKE.png)Lock 

Classified access is named with the right clearance.

D4 

Classified enclave

Mission

Sovereign workloads 

Sensitive data 

Sovereign and sensitive systems.

Sovereign and sensitive systems.

OSS 

Crown jewels

Off-network

Detail callout · A

Offline Secure Storage

Sovereign records, sensitive data, evidence and the recovery sets needed to survive a worst day.

Offline by design · secure by default 

Modules & symbols

![FV-Firebreak module icon](/assets/firebreak-icon-7zSCkB1t.png)Firebreak Physical sever 

![FV-Validate module icon](/assets/vault-icon-CD3Pv4ri.png)Validate Integrity check 

![FV-Isolate module icon](/assets/isolate-icon-B9t8fl3o.png)Isolate Zone boundary 

![FV-Transfer module icon](/assets/transfer-icon-DqGa0PQI.png)Transfer Controlled move 

![FV-Execute module icon](/assets/execute-icon-kJl5Gtmk.png)Execute Approved action 

![FV-Lock module icon](/assets/lock-icon-UU3vOaKE.png)Lock Named access 

DMZ boundary Trust transition 

OSS callout Off-network detail 

### Where each module is deployed, and what it does there.

One row per module. Placement on the network, then plain-English purpose at that point.

1.  ![FV-Isolate module icon](/assets/isolate-icon-B9t8fl3o.png)
    
    Isolate
    
    On the D1 to DMZ link and the D3 to D4 link
    
    Admin, mission and classified each sit on their own physical fabrics. A compromise in admin cannot walk into mission or classified.
    
2.  ![FV-Firebreak module icon](/assets/firebreak-icon-7zSCkB1t.png)
    
    Firebreak
    
    On the D0 to D1 link and the D1 to DMZ link
    
    Real hardware off switches on the public and admin boundaries, cutting the live path into mission and classified estates.
    
3.  ![FV-Validate module icon](/assets/vault-icon-CD3Pv4ri.png)
    
    Validate
    
    On the D0 to D1 link and inside the cross-domain DMZ
    
    Requests crossing into trusted estates are checked for origin, integrity and authority before they reach an operational system.
    
4.  ![FV-Transfer module icon](/assets/transfer-icon-DqGa0PQI.png)
    
    Transfer
    
    Inside the cross-domain DMZ
    
    Movement between domains is brokered, often one-way. Transfer governs the route and the landing point.
    
5.  ![FV-Execute module icon](/assets/execute-icon-kJl5Gtmk.png)
    
    Execute
    
    On the D2 to D3 link
    
    Mission actions hold until the right approval is in place.
    
6.  ![FV-Lock module icon](/assets/lock-icon-UU3vOaKE.png)
    
    Lock
    
    On the D3 to D4 link
    
    Classified access ties to named individuals with the right clearance, device and authority.
    

Featured In

[![TechRadar Pro logo](/press/techradar-pro-logo.svg) ](https://www.techradar.com/pro/uk-startup-put-physical-disconnect-switch-in-its-cloud-storage-offering-to-mitigate-ransomware-attacks-but-will-that-be-enough "Read about Firevault on TechRadar Pro") [![Yahoo Finance logo](/assets/yahoo-finance-logo-white-aNkUpCH7.png) ](https://uk.finance.yahoo.com/news/firevault-launches-help-businesses-directors-074500961.html "Read about Firevault on Yahoo Finance") [![Channel Insider logo](/assets/channel-insider-logo-white-CFFo4iu7.png) ](https://www.channelinsider.com/security/tools-and-platforms/firevault-security-offline-platform-offering/ "Read about Firevault on Channel Insider") [![Security Buyer logo](/assets/security-buyer-logo-white-o6oIaBWz.png) ](https://securitybuyer.com/uk-cybersecurity-startup-launches-firevault/ "Read about Firevault on Security Buyer") [![SecurityBrief logo](data:image/png;base64,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) ](https://securitybrief.com.au/story/firevault-unveils-offline-digital-vault-to-combat-rising-cyber-risks "Read about Firevault on SecurityBrief") 

Capabilities

## What you get with every deployment

01 

### UK Sovereign Facilities

All classified data remains within NATO-approved underground facilities in the United Kingdom, managed by SC/DV-cleared personnel under MOD oversight.

02 

### Cleared Multi-Party Access

All access requires authorisation from multiple cleared individuals across different roles, preventing any single point of compromise.

03 

### JSP 440 Compliance

Automated compliance logging maps directly to JSP 440, JSP 604, and NATO security requirements with continuous evidence generation.

04 

### Independent Communications

Out-of-band management via dedicated, secured communications ensures control plane access independent of primary defence networks.

05 

### Forensic-Grade Logging

Every access, transfer, and authorisation decision is recorded in tamper-proof, classification-appropriate logs on physically separate infrastructure.

06 

### Cleared Recovery Capability

Verified control-plane baselines maintained within appropriately cleared facilities ensure classified system restoration during total compromise scenarios.

Demo to Live

## Adoption Guide

Step 1 

#### Classification Boundary Assessment

Map all cross-domain connections and data flows between classification levels, identifying persistent paths and reachability gaps against JSP 440 requirements.

Step 2 

#### Sovereign Architecture Design

Design physically separated classification zones with Control modules enforcing each boundary, aligned to MOD and NATO security requirements.

Step 3 

#### Accredited Pilot

Deploy within a controlled environment with full classification boundary enforcement, multi-party authorisation, and forensic logging for accreditation evaluation.

Step 4 

#### Operational Capability

Full deployment across defence infrastructure with cleared verified baselines, continuous compliance evidence, and independent communications.

Step 1 

#### Classification Boundary Assessment

Map all cross-domain connections and data flows between classification levels, identifying persistent paths and reachability gaps against JSP 440 requirements.

Step 2 

#### Sovereign Architecture Design

Design physically separated classification zones with Control modules enforcing each boundary, aligned to MOD and NATO security requirements.

Step 3 

#### Accredited Pilot

Deploy within a controlled environment with full classification boundary enforcement, multi-party authorisation, and forensic logging for accreditation evaluation.

Step 4 

#### Operational Capability

Full deployment across defence infrastructure with cleared verified baselines, continuous compliance evidence, and independent communications.

[Organise a Demo](/contact)

Relevant Control Blueprints

## Deployment patterns that apply here

[

CP-04 FIRE 

### Enforce Physical Segmentation

Segmentation should not just be logical. It should be physically enforceable.

View blueprint ](/control-blueprints/cp-04)[

CP-01 FIRE 

### Stop Kill-Chain Ransomware

Stop ransomware moving, spreading or reaching the crown jewels.

View blueprint ](/control-blueprints/cp-01)[

CP-02 FIRE 

### Contain Active Breaches

When prevention fails, containment must be physical, immediate and provable.

View blueprint ](/control-blueprints/cp-02)[

CP-05 FIRE+VAULT 

### Protect Critical Infrastructure

Keep critical systems available, controlled and disconnected from unnecessary exposure.

View blueprint ](/control-blueprints/cp-05)

## Explore More

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### Control for Critical Infrastructure

National-grade security for essential services.

Learn more about Control for Critical Infrastructure ](/control-for-critical-infrastructure)[

### Control for Public Sector

Government network isolation and classified data paths.

Learn more about Control for Public Sector ](/control-for-public-sector)

Questions

## Frequently Asked

What clearance levels are supported at Firevault facilities? 

How does Control integrate with existing MOD networks? 

Can Control support coalition operations? 

How is supply chain security maintained for Control hardware? 

Defence blueprint - PoC

### Speak to the team to organise a PoC

Walk through your blueprint with the Firevault team and scope a proof of concept on your estate. 30 minutes, no sales pitch.

Book a PoC conversation