THE INTERNET'S REAL BACKBONE: UNDERSEA CABLES

INDUSTRY DESK■ 1 MIN READ

WED, MAY 13, 2026

■ AI-SUMMARIZED FROM 5 SOURCES ▸ TIMELINE

Thousands of miles of fiber-optic cables beneath the ocean floor form the physical infrastructure that connects the global internet. These delicate networks are critical to global connectivity but remain vulnerable to natural disasters.

Ted Stevens' 2006 description of the internet as a "series of tubes" was more literal than his critics realized. Fiber-optic cables running across ocean floors carry the vast majority of international data traffic, making them essential to modern telecommunications. The vulnerability of this infrastructure became apparent in 2022 when a volcanic eruption near Tonga severed the island nation's undersea cables, cutting off internet access for an extended period. Similar incidents have occurred worldwide, from ship anchors damaging cables to undersea earthquakes disrupting connections. As digital infrastructure continues to expand globally, the reliance on these underwater networks only increases. Tech companies, telecom operators, and governments are investing in redundancy and protection measures, but the inherent fragility of the system remains a critical consideration for internet reliability.

■ SOURCES

► Bloomberg Tech ► Bloomberg Tech ► Bloomberg Tech ► Bloomberg Tech ► Bloomberg Tech

■ SUMMARY WRITTEN BY AI FROM THE LINKS ABOVE

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THE INTERNET'S REAL BACKBONE: UNDERSEA CABLES

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