Defending Industrial Networks from Cyber Attacks: Why Resilience Beats Perimeter Security

In this episode of Cybersecurity Under Pressure: Real Attacks, Real Lessons, we look at what it really means to defend an industrial network when production, safety and uptime are part of the equation.Industrial environments are not protected by applying standard IT controls in isolation. Many plants still depend on legacy assets, flat network zones, fragile protocols, shared vendor access, engineering workstations, limited patch windows and systems that cannot simply be restarted during an incident.The episode explores why effective OT defense starts with visibility, asset ownership and network segmentation, but cannot stop there. Real resilience requires secure remote access, hardened engineering stations, controlled change management, passive monitoring, tested incident response, recovery procedures and clear coordination between OT, IT, suppliers and business leadership.The key lesson is clear: defending industrial networks is not about building a perfect perimeter. It is about reducing propagation, detecting abnormal behaviour early and keeping the physical process safe when something goes wrong.