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  • POLICY AND LEGISLATION
  • Publication 21 February 2025

Joint Communication to strengthen the security and resilience of submarine cables

The security of the EU's submarine cable infrastructure must be significantly enhanced. The Joint communication presents strong actions in a whole resilience cycle approach: prevent, detect, respond and repair, and deter.

a submarine cable

© GettyImages-Alexyz3d

The EU must first prevent disruptive incidents and increase its resilience against the threats and vulnerabilities of submarine cable infrastructures.

It must also increase its detection capacity to be in position to identify and anticipate threats as early as possible.

When an incident occurs, the EU must increase its capacity to respond in a coordinated way and in solidarity with the Member States most affected. In particular, the EU must develop the right capacities to recover as quickly as possible from any incident.

Finally, the EU must enhance its deterrence posture. It will act to protect the security of critical maritime infrastructure and hold malicious actors accountable, including actions against the ‘shadow fleet’ . 

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Joint Communication to strengthen the security and resilience of submarine cables
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