National Firewalls Cannot Protect Europe's Shared Infrastructure
Escalating hybrid attacks targeting industrial systems and public infrastructure demonstrate that borderless European networks demand a unified defence.
By United States of Europe editorial team · How we write editorial
Recent hybrid threats across Europe have expanded into grey-zone targets, ranging from cyberattacks against industrial cooling systems to coordinated fake bomb hoaxes. Hostile state actors such as Russia and Iran, alongside non-state groups, are actively exploiting internal European vulnerabilities during periods of political volatility, according to reporting by El País.
These operations deliberately target the regulatory and operational gaps between member states. In a borderless single market, a cyber breach or physical disruption in one nation's supply chain or energy network quickly ripples across national lines. Relying on twenty-seven distinct national defence strategies creates disjointed responses that hostile actors easily exploit.
Sceptics of deeper cybersecurity integration argue that national governments understand their own critical infrastructure best and should retain exclusive control over defence. Yet isolated national capabilities cannot effectively counter cross-border campaigns designed to pressure multiple European capitals simultaneously.
Joint operational standards, rapid intelligence sharing, and pooled cyber defence capabilities allow member states to detect patterns earlier and close systemic gaps. Protecting European stability requires treating shared infrastructure as a common defensive responsibility, ensuring no single country faces coordinated hybrid warfare alone.