Report Highlights Vulnerability of Trans-Pacific Cables
A September 2026 report reveals high risks of sabotage to critical subsea internet infrastructure.
Updated on Oct. 28, 2026 in Data Centers
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The US-China Economic and Security Review Commission released a report in September 2026 detailing the vulnerability of trans-Pacific subsea cables. The findings categorize major projects owned by Google, Meta, and Verizon as high-risk due to increasing geopolitical tensions.
Why it matters
Undersea cables underpin global data flow, and their disruption could force internet traffic onto slower, overcrowded routes. Simultaneous damage to these systems poses a significant threat to trans-Pacific network capacity.
The index evaluates infrastructure vulnerability based on factors including cable depth, shipping traffic volume, ownership, and territorial claims. Analysis of over 200 research ships revealed persistent movement patterns near undersea infrastructure.
The players
US-China Economic and Security Review Commission
This body is a bipartisan congressional commission that monitors and investigates the national security implications of the economic relationship between the United States and China.
Center for Strategic and International Studies
This is a bipartisan, nonprofit policy research organization dedicated to providing strategic insights on international issues.
Google is a major multinational technology company that invests heavily in the construction and management of global subsea internet infrastructure.
Meta
Meta is a technology conglomerate that maintains significant subsea cable assets to support its global social media and connectivity platforms.
Verizon
Verizon is a telecommunications giant that operates extensive international network infrastructure, including critical subsea cable systems.
The details
The report utilizes a new Trans-Pacific Cable Gray Zone Vulnerability Index to rank risks across the ocean floor. Researchers also noted that Chinese vessels spent more time near such infrastructure between 2020 and 2025 than ships from other nations.
Timeline
Chinese research ships surveyed areas near undersea cables from 2020 to 2025.
A Taiwanese government court convicted a captain for damaging a cable in 2025.
A war began between the United States, Israel, and Iran in February 2026.
The US-China Commission published the cable vulnerability report in September 2026.
The CSIS published a report on Chinese research vessels in October 2026.
The Tech Race
The emergence of the Trans-Pacific Cable Gray Zone Vulnerability Index signals a shift toward formalizing maritime security assessments in the tech sector. This mapping effort reflects a transition away from treating subsea cables as passive infrastructure toward recognizing them as active geopolitical assets.
Users may experience slower internet speeds or increased latency if trans-Pacific data traffic is diverted due to cable disruptions. While direct service outages are currently theoretical, the vulnerability of these cables could eventually influence long-term costs for international digital services.
The takeaway
Subsea cables remain a critical but fragile backbone of the modern digital economy. Readers should be aware that geopolitical tensions increasingly manifest as risks to the physical infrastructure powering global internet connectivity.
Further reading
Learn more about the risks to global infrastructure in our Data Centers section.
Source note: This article includes information reported by Ars Technica.
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