Escalating threats to undersea cable networks, stemming from gray-zone sabotage at vulnerable chokepoints, are receiving long-overdue attention from policymakers and the public. Recent incidents highlight the strategic vulnerability of this infrastructure, due to a lack of redundancy, limited repair capacity, and gaps in international maritime law. Despite attempts at multilateral cooperation through the G7 and the Quad, concrete actions are lagging. The US administration has not directly addressed this issue. To strengthen resilience, democracies must collaborate and invest in hardened cable designs, real-time monitoring and data sharing, routing diversity, regional repair hubs, and enhanced legal frameworks. They must work together to secure their lifeline for economic and national security and future digital-technology advancement.