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Taiwan Suspects Chinese Ship Sabotaged Undersea Internet Cable

The incident raises concern China will try to cut all undersea cables to Taiwan in the event of a military invasion, so Taiwan is racing to develop a satellite-based internet service.

 & Michael Kan Principal Reporter

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Taiwan is investigating whether a Chinese vessel intentionally severed an undersea internet cable to the island, raising concerns about potential sabotage.

The incident occurred on Friday when local telecommunications provider Chunghwa Telecom reported a disruption to the undersea cable. Taiwan's coast guard dispatched a vessel to the site and discovered a Hong Kong-owned cargo ship called "SHUNXIN 39" about 7 nautical miles from the undersea cable. A preliminary investigation has since determined the vessel was likely responsible for the damage.  

(Credit: Taiwan Coast Guard Administration)

Although the undersea cable was damaged, Chunghwa Telecom was able to reroute internet communications through backups. The damaged cable belongs to Trans-Pacific Express, which links China, Taiwan, South Korea, Japan, and the US. 

Taiwan’s coast guard attempted to board Shun Xin 39, but turbulent waves prevented authorities from doing so, causing Shun Xin 39 to resume its journey to the South Korean port of Busan, according to The Wall Street Journal. Still, Taiwan has ordered a full investigation and asked South Korea for assistance. 

Taiwan’s coast guard also says the vessel is registered to a Hong Kong company called Jie Yang Trading Limited and that seven crew members on board are Chinese nationals. The ship was been found using two sets of Automatic Identification System equipment, allowing it to broadcast two separate IDs to international maritime systems, The New York Times reports.  

The incident raises concerns that the Chinese government may have secretly orchestrated the sabotage. In 2023, two Chinese vessels also damaged an undersea cable to an island north of Taiwan, temporarily cutting residents off from the internet.

If China invades Taiwan, the country will likely try to sabotage all undersea cables to the island, preventing it from communicating with the rest of the world. In response, the Taiwanese government has been racing to develop a satellite internet system, but without the help of SpaceX, partly due to concerns about Elon Musk’s ties in China. Instead, Taiwan is considering working with Amazon’s Project Kuiper on satellite internet access to the island, although the company is still working to launch its first commercial satellites.

About Our Expert

Michael Kan

Michael Kan

Principal Reporter

My Experience

I've been a journalist for over 15 years. I got my start as a schools and cities reporter in Kansas City and joined PCMag in 2017, where I cover satellite internet services, cybersecurity, PC hardware, and more. I'm currently based in San Francisco, but previously spent over five years in China, covering the country's technology sector.

Since 2020, I've covered the launch and explosive growth of SpaceX's Starlink satellite internet service, writing 600+ stories on availability and feature launches, but also the regulatory battles over the expansion of satellite constellations, fights with rival providers like AST SpaceMobile and Amazon, and the effort to expand into satellite-based mobile service. I've combed through FCC filings for the latest news and driven to remote corners of California to test Starlink's cellular service.

I also cover cyber threats, from ransomware gangs to the emergence of AI-based malware. In 2024 and 2025, the FTC forced Avast to pay consumers $16.5 million for secretly harvesting and selling their personal information to third-party clients, as revealed in my joint investigation with Motherboard.

I also cover the PC graphics card market. Pandemic-era shortages led me to camp out in front of a Best Buy to get an RTX 3000. I'm now following how the AI-driven memory shortage is impacting the entire consumer electronics market. I'm always eager to learn more, so please jump in the comments with feedback and send me tips.

The Best Tech I've Had:

  • My first video game console: a Nintendo Famicom
  • I loved my Sega Saturn despite PlayStation's popularity.
  • The iPod Video I received as a gift in college
  • Xbox 360 FTW
  • The Galaxy Nexus was the first smartphone I was proud to own.
  • The PC desktop I built in 2013, which still works to this day.

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