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Africa Times

“They Built a Machine That Can Cut the Internet”: China’s Deep-Sea Cable Cutter Sparks Global Alarm Over Underwater Warfare and Security Risks

China's unveiling of a sophisticated cable-cutting device capable of operating at unprecedented ocean depths is raising global security concerns, as its potential to disrupt critical communication networks underscores the complex interplay between technological advancement and international stability.
Eirwen WilliamsEirwen Williams10/11/202516
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Illustration of a sophisticated cable-cutting device operating at great ocean depths.
Illustration of a sophisticated cable-cutting device operating at great ocean depths.
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IN A NUTSHELL
  • 🌊 China’s new device can cut cables at unprecedented ocean depths.
  • ⚠️ International concerns rise over its dual-use potential impacting global security.
  • 🚢 China’s advancements in undersea technology enhance its strategic maritime capabilities.
  • 🌍 The global community must balance technological progress with international cooperation.

China’s recent introduction of a high-tech cable-cutting device has stirred significant interest and concern across the globe. This cutting-edge tool is capable of operating at depths of up to 13,000 feet, making it a remarkable feat of engineering. Developed by the China Ship Scientific Research Centre, the device is designed for use with advanced submersibles and is capable of targeting undersea cables that carry 95% of the world’s communication data. While the potential for technological advancement is clear, the dual-use nature of this device raises critical questions about global security and international cooperation.

China’s Pioneering Deep-Sea Technology

China has made waves in the field of deep-sea technology with the introduction of its new cable-cutting device. Capable of operating at depths of up to 13,000 feet, the device is a testament to the nation’s commitment to advancing its technological capabilities. Developed by the China Ship Scientific Research Centre, the tool is intended for use with state-of-the-art submersibles, including the Fendouzhe and Haidou series. These submersibles, both crewed and uncrewed, play a crucial role in maintaining global communication networks.

The device itself is an engineering marvel. It features a diamond-coated grinding wheel that rotates at 1,600 rpm, allowing it to cut through steel cables without disturbing ocean sediment. Constructed with a titanium alloy shell and oil-compensated seals, it is built to withstand the immense pressures found at great depths. Controlled by robotic arms and advanced positioning systems, the device ensures precision even in challenging underwater environments. While this represents a significant technological achievement, it also raises important questions regarding its implications for global security.

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Global Security and Communication Risks

The dual-use potential of China’s cable-cutting device has sparked widespread concern. Initially designed for civilian purposes such as salvage and seabed mining, the tool’s ability to disrupt crucial communication cables poses a significant security risk. Strategic locations such as Guam, which are vital to global communications, could be vulnerable to disruption, leading to increased geopolitical tensions. The possibility of the device being used in military operations, particularly near U.S. defense zones, underscores the stakes involved.

Led by engineer Hu Haolong, the development team has faced numerous challenges to ensure the device’s efficacy at great depths. The tool’s 1-kilowatt motor, combined with an 8:1 gear reducer, provides a balance of power and efficiency. However, managing heat generated during prolonged use is crucial to avoid overheating. These technical accomplishments, documented in peer-reviewed studies, highlight the device’s potential impact on global communication and security networks.

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Strategic Expansion of China’s Undersea Capabilities

China’s advancements in undersea technology reflect a broader strategy to enhance its oceanic infrastructure and influence. Boasting the largest fleet of submersibles worldwide, China is well-positioned to exploit vast oceanic regions. The new cable-cutting device, capable of operating from unmanned platforms, offers the potential to disrupt strategic bottlenecks covertly, providing China with significant tactical advantages.

While Chinese scientists maintain that the tool supports marine resource development, its potential military applications cannot be ignored. Trials have demonstrated the device’s capability to cut through cables up to 2.4 inches thick, proving its utility for resource extraction. However, the dual-use nature of this technology highlights the delicate balance between civilian and military applications. Recent incidents involving seabed natural gas pipelines further illustrate the complexities of this technological advancement.

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Implications for Future Communication Infrastructure

The introduction of China’s deep-sea cable cutter brings to light critical questions about the future of global communication infrastructure and security. The ability to cut cables at unprecedented depths presents both opportunities for technological progress and risks of significant disruption. Addressing these challenges necessitates international cooperation and dialogue to ensure that technological advancements contribute to global stability rather than conflict.

As China continues to expand its undersea capabilities, the global community must consider the broader implications for communication infrastructure and security. The question remains: How can nations balance technological advancements with the imperative for global cooperation and security?

This article is based on verified sources and supported by editorial technologies.

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Eirwen Williams
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Eirwen Williams is a New York–based journalist at AfricaTimes.com, covering economy, society, culture, science, and environment across Africa and the world. With a background in journalism from a specialized program in New York, his stories focus on the intersection of policy, innovation, and everyday life. Contact: [email protected]

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View 16 Comments
16 Comments
  1. sandrashield7 on 10/11/2025 7:01 AM

    Wow, this sounds like a plot from a spy movie! 🎬

    Reply
  2. Amelia7 on 10/11/2025 7:01 AM

    Wow, this is both fascinating and terrifying! Who knows what else is happening deep underwater? 🤔

    Reply
  3. max on 10/11/2025 7:31 AM

    Is there any way to protect these undersea cables from being cut?

    Reply
  4. khadija on 10/11/2025 8:00 AM

    Great article! Thanks for bringing this important issue to light. 🌟

    Reply
  5. lauren_magic on 10/11/2025 8:07 AM

    How does this tech impact everyday internet users like us?

    Reply
  6. Celinerevelation on 10/11/2025 8:29 AM

    I can’t believe they can cut cables at 13,000 feet. Technology is amazing! 😮

    Reply
  7. madison5 on 10/11/2025 8:58 AM

    So much for “peaceful purposes” when it comes to dual-use tech. 😒

    Reply
  8. matthewlandscape on 10/11/2025 9:10 AM

    Thank you for bringing attention to such an important issue!

    Reply
  9. max2 on 10/11/2025 9:26 AM

    Wait, is this the beginning of underwater cyber warfare?

    Reply
  10. matildaphoenix on 10/11/2025 9:56 AM

    Can other countries develop similar technology to counter this threat?

    Reply
  11. Melanie_memory on 10/11/2025 10:13 AM

    So, are we talking about the internet apocalypse now? 😅

    Reply
  12. jeremy_flight2 on 10/11/2025 10:25 AM

    What will be the economic impact if these cables are targeted?

    Reply
  13. Bruce_wolf on 10/11/2025 10:54 AM

    Sounds like something out of a James Bond movie! 🎬

    Reply
  14. michaelimmortality on 10/11/2025 11:18 AM

    Why is there not more international oversight on such tech?

    Reply
  15. Cedric2 on 10/11/2025 11:24 AM

    Does this mean we need to rethink global communication strategies?

    Reply
  16. Peter on 10/11/2025 11:52 AM

    Why is the world not doing more to regulate such technologies? 🤷‍♂️

    Reply
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Trending
explore the key challenges facing healthcare systems across africa, including infrastructure, access, and quality of care, and discover potential solutions for improvement.
Challenges in healthcare systems across africa
discover the inspiring impact and leadership of african women shaping the future in 2026. explore their power, achievements, and vision for a stronger continent.
The power of african women leaders in 2026
explore africa’s rapidly expanding film industry and its significant influence on global cinema, culture, and storytelling.
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