Fiber, Fury, and a Dangerously Short Fleet

A new industry report warns the global cable repair fleet and cross-border coordination are falling dangerously behind

30 Mar 2026

The cables that carry the world's internet traffic have a problem, and it is not the cables themselves. A new report from Capacity Insights, drawing on interviews with senior executives across the submarine cable industry, has exposed a growing vulnerability at the heart of global digital infrastructure: the systems meant to protect and repair those cables cannot keep pace with the threats they face.

The sector logs between 150 and 200 faults per year, most from fishing and anchoring activity. But the 2024 Baltic Sea incident, in which a Chinese-flagged vessel severed key subsea cables, changed the conversation. Industry leaders are now openly treating deliberate interference as an engineering and governance consideration, not a remote contingency.

Carl Grivner, CEO at FLAG, is unambiguous: there are not enough cable ships. The global fleet is aging, new builds take years to commission, and market economics do not reward operators for keeping standby vessels idle. That repair shortfall existed before grey-zone threats entered the picture. It is now a front-line vulnerability.

The report also identifies a structural tension driven by the hyperscaler surge. Major cloud platforms have moved from buying cable capacity to owning it outright. Valentino Giuseppe at Sparkle points to this ownership shift as a catalyst for new national-level security measures. Ana Nakashidze at AzerTelecom adds a harder warning: as hyperscalers increasingly set the infrastructure agenda, traditional operators risk losing their seat at the table on decisions that shape long-term resilience.

On the technical side, distributed acoustic sensing and AI-powered fault detection are turning cable infrastructure into active monitoring systems. Governments and operators are beginning to integrate these tools into security planning and incident response. The progress is real. But executives are clear that no single technology solves what is fundamentally a governance problem.

The report's core finding is direct: resilience requires coordination between governments and private operators across national boundaries, and that coordination does not yet exist at the scale the industry needs. The sector can survive a single cut. What remains unsolved is how to absorb multiple correlated failures at once. As global investment in submarine cables accelerates, closing that gap is no longer optional.