Critical National Infrastructure Security
We safeguard critical national infrastructure and mission-critical enterprises that demand uncompromising cyber resilience — protecting energy, water, telecoms, and government systems that nations depend on.
CNI Security Delivery Methodology
Our approach is built around the unique threat landscape facing critical national infrastructure — combining advanced threat intelligence, real-world attack simulation, and operational resilience planning.
Threat Intelligence & Risk Assessment
Identify CNI-specific vulnerabilities and threat vectors across IT, OT, and IoT systems — mapping nation-state threats, ransomware groups, and supply chain risks relevant to your sector.
What you receive: CNI threat intelligence report, risk assessment, sector-specific vulnerability profile
Penetration Testing & Red Teams
Real-world attack simulations testing defences across physical and digital infrastructure — including OT/ICS systems, network perimeters, and supply chain access points.
What you receive: Red team findings, penetration test report, attack path documentation
Zero Trust Implementation
Least-privilege access, multi-factor authentication, and network segmentation across interconnected CNI systems — eliminating implicit trust at every layer.
What you receive: Zero trust architecture design, implementation plan, access policy documentation
Incident Response & Recovery
Rapid containment, mitigation, and operational restoration following security events — with CNI-specific playbooks and cross-sector coordination procedures.
What you receive: Incident response playbooks, recovery procedures, tabletop exercise outcomes
CNI Security Capabilities
OT/ICS Protection
Industrial control systems and IoT security for energy, water, manufacturing, and transportation CNI environments — protecting the operational technology that keeps critical services running.
Nation-State Threat Defence
Protection against advanced persistent threats (APTs), state-sponsored espionage, and destabilisation attacks targeting critical national infrastructure — with 24/7 threat intelligence and monitoring.
Supply Chain Security
Vendor assessment, third-party risk management, and continuous monitoring to prevent supply chain infiltration — securing the partner ecosystem that supports your CNI operations.
Regulatory Compliance
Full alignment with NIS2, NIST CSF, NESA, UK CAF, CISA, and regional CNI frameworks — ensuring your security programme meets national and international regulatory requirements.
CNI specialists protecting what can't fail
| Approach | What it simulates | Best suited for |
|---|---|---|
| Black Box | An external attacker with zero knowledge of the application's internals | External-facing apps, pre-launch assessments |
| Grey Box | A compromised insider or threat actor with partial access (credentials, architectural overview) | Post-authentication flows, privilege escalation testing |
| White Box | Full access to source code, architecture diagrams, and environment details | Deep-dive code review, CI/CD pipeline integration, maximum coverage |
Why GoAgile for Critical National Infrastructure?
Our CNI security practice is built around zero-compromise protection for the infrastructure that nations, economies, and communities depend on — combining OT/IT expertise with sector-specific threat intelligence.
CNI specialisation
Deep expertise in securing energy, water, telecommunications, financial, and government infrastructure — understanding the cascading risks that make CNI security fundamentally different from standard enterprise security.
OT & IT convergence
Unified security across both operational technology and IT environments — eliminating the gaps that arise when OT and IT are treated as separate security domains.
24/7 resilience
Continuous monitoring, threat intelligence, and rapid incident response protecting critical operations around the clock — because the systems we secure cannot afford downtime.
Protect the infrastructure your operations depend on.
Talk to our CNI security team for a no-obligation conversation about your infrastructure resilience.
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