Cross Domain Solutions
Secure data exchange for highly critical environments
20+
years delivering
secure solutions
500+
Cross Domain
deployments since 2020
Trusted
from OFFICIAL
to TOP SECRET
UK
sovereign
technology
Why Cross Domain?
Our Cross Domain Solutions enable government, defence, Critical National Infrastructure and commercial organisations to move data safely between security domains, making it easier to connect systems, improve operational visibility and support faster, better-informed decisions, all while maintaining the highest levels of assurance.
Trusted by
What Cross Domain Solutions deliver
Real outcomes for defence, government and CNI teams, not just features.
Share information, not risk
Securely transfer data between zones of trust, with every exchange governed by policy and protected from unauthorised access.
Operational visibility, without exposure
Make trusted data available across environments without exposing critical networks or sensitive systems.
Security that doesn't slow you down
Keep information moving between systems while enforcing security policy at every stage of the transfer.
Built for assurance
Simplify accreditation with solutions designed to meet the demands of highly regulated environments.
Our areas of expertise
Cross Domain Solutions
Secure, validated data transfer between networks of different classification levels.
Data Diodes
Hardware-enforced, one-way transfer for the highest levels of assurance.
Consultancy
Honest advice on best practice, accreditation and certification.
OUR CORE TECHNOLOGY
TrustedFilter®
At the heart of every 4Secure solution is TrustedFilter®, our own software that inspects and verifies data at the content level, not just the network level. It augments your existing firewalls and security tools, and deploys on-premise or in the cloud, bringing data assurance that once needed specialist hardware.
Sovereign by design
Operational advantages include:
Reduced reliance on foreign technology providers
Faster accreditation and simpler assurance
Transparent supply chain and clear accountability
Lifecycle support from a UK-based team
Sectors we serve
From offshore platforms to government networks, we work where security and operational continuity both matter.
Government
Supporting governments to fully harness data intelligence and increase organisational efficiency.
Defence
Cross Domain Solutions for real-time intelligence sharing and secure voice & video communication.
Critical National Infrastructure
Creating secure connections for real-time monitoring and simultaneously enhancing cybersecurity.
Cyber certifications
Upcoming events
Scottish OT Cyber Summit
Aberdeen, 12 August
IET Cyber Security Conference
London, 15-16 September
CiiSEC LIVE
Manchester, 23-24 November
Contact us
Ready to connect the disconnected and start unlocking value from cybersecurity? Get in touch today, we look forward to helping you.
Connecting The Disconnected
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