Taiwan’s critical internet infrastructure faces escalating sabotage threats as the fourth submarine cable break in two months raises alarming questions about China’s shadow operations.
Story Highlights
- East Asia Crossing 2 cable severed September 1, marking fourth major break since July targeting Taiwan’s connectivity
- Pattern emerges of Chinese-linked vessels cutting cables, including incidents involving Xingshun 39 and Hongtai 58
- Taiwan’s domestic infrastructure remains secure while backup routes maintain communications despite ongoing attacks
- Expert analysis points to deliberate campaign against Taiwan’s strategic digital infrastructure amid rising tensions
Fourth Cable Attack in Two Months Reveals Disturbing Pattern
The September 1 break of the East Asia Crossing 2 submarine cable represents the latest assault on Taiwan’s digital infrastructure, following three previous incidents since July. The RNAL/FNAL cable suffered damage near Hong Kong on July 6, the C2C experienced faults off Fangshan in July, and the EAC1 broke near Bali, New Taipei on August 22. Taiwan’s Ministry of Digital Affairs confirmed the EAC2 break occurred on the Philippines-Singapore segment, disrupting international data transmission between Taiwan and Singapore while leaving the island’s domestic cables intact.
This coordinated series of attacks coincides with documented incidents involving vessels with suspected Chinese connections. In January, the Xingshun 39, a vessel with Chinese ties, severed a critical cable between Taiwan and the United States. February brought another incident when Hongtai 58, crewed by Chinese nationals, cut a cable connecting Taiwan to the Penghu Islands. These incidents highlight a concerning escalation in what experts increasingly view as deliberate sabotage operations targeting Taiwan’s strategic communications infrastructure.
🚨 Taiwan faces another round of undersea cable disruptions!
On September 1, the EAC2 Southeast Asia branch cable was severed, directly impacting Taiwan–Singapore international connectivity. This marks the ninth undersea cable this year either under repair or out of service,… pic.twitter.com/LriM2tOFo2
— SemiVision👁️👁️ (@semivision_tw) September 2, 2025
Taiwan’s Infrastructure Resilience Demonstrates Strategic Preparedness
Despite the coordinated attacks, Taiwan’s telecommunications infrastructure has proven remarkably resilient. Chunghwa Telecom, the island’s largest provider, confirmed its cables remain fully operational and unaffected by the EAC2 incident. The company clarified it holds no investment in the damaged cable, emphasizing that all self-operated international cables continue functioning normally. This redundancy reflects years of strategic planning to counter potential infrastructure threats from hostile foreign actors seeking to isolate Taiwan digitally.
The Ministry of Digital Affairs reported that all ten domestic cables remain intact, with backup routes successfully maintaining stable communications throughout the disruptions. Three international cables currently remain out of service, but the network’s built-in redundancy prevents service interruptions for Taiwan’s citizens and businesses. Repair operations continue for the damaged cables, with completion dates extending from September through November 2025, depending on ship availability and sea conditions that complicate underwater repair work.
Strategic Implications for America’s Pacific Ally
Taiwan serves as a critical node in East Asia’s digital infrastructure, connected by 14 international cables that facilitate regional and global communications, finance, and security operations. The island’s geopolitical position makes its digital infrastructure an attractive target for adversaries seeking to undermine America’s strategic partnerships in the Pacific.
The mounting evidence suggests these incidents represent more than routine accidents or fishing mishaps. Japan and Taiwan are exploring closer collaboration on cable security, recognizing that protecting these digital arteries requires coordinated defense against state-sponsored threats. The pattern of Chinese-linked vessels targeting Taiwan’s connectivity demonstrates Beijing’s willingness to weaponize critical infrastructure against democratic allies in the region.
Sources:
Taiwan dismisses rumors of submarine cable outages
Submarine cable disruption affects Taiwan-Singapore traffic
Chunghwa Telecom reassures cable services unaffected
China’s Shadow Fleet War on Taiwan’s Undersea Cables
