EU commits €8 billion to strengthen submarine cable security 


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The European Commission has announced an €8 billion investment to improve the security and resilience of submarine cables

This includes major funding for projects such as the Baltic Synchronisation (€1.23 billion), the Great Sea Interconnector (€658 million), Bornholm Energy Island (€645 million), the Biscay Bay Interconnector (€578 million), and the Celtic Interconnector (€531 million). 

Speaking in Helsinki, Executive Vice-President Henna Virkkunen outlined the EU’s plan to protect submarine cables amid rising security concerns. “In response to growing geopolitical tensions, particularly in regions such as the Baltic Sea, the European Commission is taking decisive action to safeguard our critical submarine cable infrastructure. With this Action Plan, we are taking a significant step forward to strengthen their security. We want to make sure Europe is equipped not only to prevent and detect sabotage to cables but also to actively deter, repair and respond to any threat to critical infrastructure that is key to our economy and collective security,” she confirmed. 

Recent incidents, including suspected sabotage in the Baltic Sea in December 2024, have highlighted the risks to these vital links. As 99% of intercontinental internet traffic and a growing share of Europe’s energy supply dependent on subsea cables, their protection is now a priority.  

Throughout this year and 2026, the Commission and the High Representative will work with Member States and the EU Agency for Cybersecurity (ENISA) to map existing and planned submarine cables, assess risks, develop security measures, and identify key projects for investment. 

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