The Fragile State of Global Internet Infrastructure Repair

Recent geopolitical tensions in the Strait of Hormuz have highlighted a critical vulnerability in the global internet: the aging and insufficient fleet of specialized vessels responsible for repairing undersea fiber-optic cables. While Iranian threats to control or tax cables in the region have drawn attention, the broader systemic risk lies in the maintenance infrastructure itself. With only about 60 vessels globally dedicated to laying and repairing cables—and fewer than 20 focused exclusively on repairs—the system lacks the necessary redundancy to handle frequent seafloor damage.

Industry experts warn of a growing mismatch between the rapid expansion of global cable networks and the stagnant investment in maintenance capacity. Although billions of dollars are poured into new cable projects, the fleet tasked with protecting these assets is increasingly obsolete. Many of these ships are repurposed vessels from the oil and gas industry, and a significant portion of the fleet is projected to reach the end of its service life by 2040. This creates a precarious situation where the global internet is becoming more expansive and complex, yet the tools required to fix it when it breaks are becoming harder to source.

This infrastructure gap carries significant implications for global connectivity and economic stability. Because cable repairs often require ships to remain stationary for days in potentially volatile waters, conflict zones can effectively paralyze maintenance operations. As the world becomes increasingly reliant on digital data, the failure to modernize the repair fleet threatens to turn routine cable faults into prolonged outages. Addressing this issue will require a strategic shift in investment, prioritizing the maintenance of existing digital lifelines as much as the construction of new ones.