Japan Calls for Enhanced Protection of Submarine Cables Amid Rising Data Volumes

• •Japan's expert panel recommends public-private cooperation for submarine cable security.
• •The report stresses the importance of submarine cables for national security and AI data growth.
• •Technological advancements for damage detection and repair systems are prioritized.

On June 12, 2026, Japan's communications ministry expert panel urged public-private collaboration to enhance the protection of international submarine cables. The draft report emphasizes the cables' significance for national security and international competitiveness, especially with increasing data volumes due to artificial intelligence. The ministry plans to finalize the report by mid-July after public consultation. It highlights the need for advanced damage detection technologies and securing cable-laying ships to ensure rapid repairs. The report reflects growing concerns over the vulnerabilities of critical infrastructure amid geopolitical tensions.