Cyberattack Freezes €7 Billion Fehmarnbelt Tunnel Linking Denmark and Germany

Cyberattack halts construction of tunnel between Denmark and Germany

Cyberattack Freezes €7 Billion Fehmarnbelt Tunnel Linking Denmark and Germany

A cyberattack has halted construction of the 18-kilometer Fehmarnbelt tunnel between Denmark and Germany. The FLC consortium's workers' ID cards stopped functioning, and vessels, cranes, and platforms were immobilized, bringing offshore work to a standstill. Around 2,800 employees from five countries are affected. Danish authorities have not ruled out hybrid warfare, citing recent warnings of Russian cyber threats. The €7 billion project, originally slated to open in 2029, now faces further delays.

Henning Mortensen, head of the Danish Council for Digital Security, did not rule out a connection between the incident and hybrid warfare.

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2026-10-13