Philippines Faces Rising Threats to Undersea Infrastructure

Philippine officials issued a warning on September 8, 2026, regarding increasing threats to critical undersea infrastructure, including submarine cables and energy pipelines. These threats stem from gray-zone tactics, sabotage, geopolitical tensions, and cyberattacks. The Department of Foreign Affairs organized an Experts’ Forum to address these vulnerabilities, highlighting that submarine telecommunications cables carry over 99% of international data traffic. Justice Department Chief State Counsel Dennis Chan emphasized the severe consequences of potential sabotage, while Foreign Affairs Undersecretary Leo Herrera-Lim noted the evolving nature of threats beyond traditional piracy and natural disasters. The Philippines has faced maritime tensions, particularly with China, which has prompted 39 diplomatic protests in 2026 alone. The Department of Energy identified physical, geopolitical, and cyber threats as major vulnerabilities, stressing the need for enhanced protection of these critical assets.

Key Points: • Philippine officials warn of threats to undersea infrastructure from geopolitical tensions and cyberattacks. • Submarine cables are critical, carrying over 99% of international data traffic. • Recent maritime tensions with China have heightened concerns over infrastructure security.