Taiwan activates backup communications after submarine cable rupture

The recent rupture of the Taiwan-Matsu No. 3 submarine cable, impacting the northernmost island of Dongyin, underscores a persistent vulnerability in our nation's communication infrastructure. While the Ministry of Digital Affairs has swiftly activated a backup microwave system, ensuring continued voice and internet services, the incident serves as a stark reminder of the challenges we face.

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The other three municipalities of Lienchiang County (Matsu) - Nangan, Beigan and Juguang - have not been affected.

This latest disruption, suspected to be caused by debris from a grounded vessel in rough seas, follows previous reports of partial damage to the same cable. The government has rightly prioritized reinforcing our submarine cables and enhancing communication resilience, particularly in light of a series of incidents involving vessels linked to mainland China. These events are not isolated; they are part of a broader pattern of pressure tactics.

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The main telecommunications company in Taiwan, Chunghwa Telecom, had already reported 'partial damage' to fibers of that same cable in that area on March 30.

From our perspective here in Taiwan, these cable incidents are viewed with significant concern, often interpreted as part of Beijing's "gray zone" operations aimed at pressuring our government. While international media may report on the technical aspects of cable breaks, we understand the underlying geopolitical implications. The frequency of these incidents—an average of seven to eight cable cuts annually—demands constant vigilance and investment in robust backup systems. The swift activation of our backup system demonstrates our preparedness, but the ongoing need for repairs, especially with potential weather delays, highlights the critical importance of securing our digital lifelines.

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The breakdown could be due to 'rough seas,' which may have displaced the remains of a previously grounded vessel, causing damage to the cable.