Critical National Infrastructure

Critical National Infrastructure (CNI) is the backbone of modern life – spanning energy, water, transport, communications, and more. These interconnected systems sustain not only daily activity but also economic stability, national security, and public trust.

Yet the very interdependence that makes CNI efficient also makes it vulnerable. Cyber intrusions, sabotage, hybrid attacks, climate shocks, and resource disruptions can ripple across multiple sectors, amplifying the consequences. A power outage can disable communications; a cyber breach can halt transport; extreme weather can stress energy grids and supply chains. In this environment, resilience is no longer a purely technical challenge – it is a strategic necessity.

The Critical Questions of Interest

  • How vulnerable are interconnected systems to cascading failures?
  • Where should responsibility for protection and response sit – between government, regulators, operators, and private actors?
  • How can organisations maintain operational continuity when facing simultaneous cyber, physical, and environmental pressures?
  • What role does communications and public trust play in effective crisis management?
  • How do leaders prepare for adversaries exploiting AI, IoT, or emerging technologies to target CNI?
  • What does effective cross-sector coordination look like in practice?

Uncovering Insights

i3 Gen’s CNI wargames immerse leaders from across sectors in near-future scenarios where critical systems are threatened. These exercises replicate the uncertainty and complexity of real-world crises, forcing participants to make rapid decisions with incomplete information while balancing competing pressures.

Expert adjudication ensures scenarios reflect realistic vulnerabilities – whether cyber intrusions, physical sabotage, or environmental stressors – while dynamic design introduces cascading second- and third-order effects. This exposes interdependencies that often remain hidden until disruption occurs.

In the Game, Teams Grapple With:

  • Responding to simultaneous attacks on digital and physical systems.
  • Coordinating across government, regulators, and private operators when command chains falter.
  • Prioritising between speed, efficiency, and resilience in emergency response.
  • Restoring public trust while managing prolonged outages or cascading failures.
  • Balancing domestic resilience with global supply chain dependencies.

The Impact

Disruption to CNI is not a matter of if, but when. Wargaming gives leaders the chance to rehearse critical decisions before they matter – stress-testing resilience plans, identifying blind spots, and strengthening coordination across sectors.

The result is clearer lines of accountability, stronger strategies, and enhanced resilience – ensuring that the essential systems society depends on are protected, responsive, and prepared for future shocks.

CNI is the backbone of modern life. Protect it, prepare for it - rehearse your resilience today.