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The Internet Technology

The Underwater Cables That Carry the Internet Are in Trouble (bloomberg.com) 39

The roughly 500 fiber-optic cables lying on the ocean floor carry more than 95% of all internet data -- not satellites, as many might assume -- and they face growing threats from natural disasters, terrorists and nation-states capable of disrupting global communications by dragging anchors or deploying submarines against the infrastructure.

The cables are protected by layers of copper, steel, and plastics, but they remain vulnerable at multiple points: earthquakes can disturb them on the seafloor, and the connections where cables meet land-based infrastructure present targets for bad actors. National actors including Russia, China and the US possess the capability to attack these cables.

A bipartisan Senate bill co-sponsored by Democrat Jeanne Shaheen and Republican John Barrasso is under consideration. The legislation would require a report to Congress within six months on Chinese and Russian sabotage efforts, mandate sanctions against foreign parties responsible for attacks, and direct the US to provide more resources for cable protection and repair.
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The Underwater Cables That Carry the Internet Are in Trouble

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  • by GoTeam ( 5042081 ) on Wednesday November 26, 2025 @10:21AM (#65819157)

    The legislation would require a report to Congress within six months on Chinese and Russian sabotage efforts

    Does this mean the US won't have to report on their own sabotage efforts to congress?

  • by BrightCandle ( 636365 ) on Wednesday November 26, 2025 @10:52AM (#65819237)
    There are so many ships passing over them every day they are very difficult to defend. On top of that there are a lot of Russian ships to be escorting. I do think we should likely increase surveillance of the cables so its easier to identify which vessel sabotaged them making it less of an investigation and more of a raid the ship and arrest the crew situation if we can. We can't stop the state involved from sanction these attacks but we can put the people doing them behind bars and seize the ships to dissuade it.
    • by haruchai ( 17472 )

      too much hassle. build a shadow fleet of well-armed fast interceptors with untraceable munitions and sink the saboteurs.

      • too much hassle. build a shadow fleet of well-armed fast interceptors with untraceable munitions and sink the saboteurs.

        To intercept them you still have to identify them, which you can't do until after they perform the sabotage. Given that, what's the benefit in sinking them rather than seizing them? Sinking them gains you nothing, seizing them gains you the sabotage vessel. It probably won't be worth much, but more than nothing. I guess sinking them saves the cost of imprisoning the crew, but I'd rather imprison them for a few years than murder them.

        • by haruchai ( 17472 )

          You can do preemptive targeting or you can let them get away with it a couple times and track them.
          There aren't many who have fleets big enough to pull this off and most of the ones that do are allies or not enemies.
          Seizing them is a big headache, you're responsible for the boat & crew and the attendant diplomatic headaches.
          Same goes for imprisoning them and after a few years they'll be back doing sabotage.
          Sending a clear FAFO message will certainly deter prospective pirates

  • by Anonymous Coward

    > not satellites, as many might assume
    I'm sorry... WHAT?!
    What idiots think that most of global communications are transmitted via satellites??

  • by WaterFoodEarthCosmos ( 6661530 ) on Wednesday November 26, 2025 @10:59AM (#65819273)
    It is called; The Web Beneath the Waves: The Fragile Cables That Connect Our World by Samanth Subramanian. Just came out this season of the year.
    • That's the problem: they are not a web. The original idea of the internet was to have a web of connections so that a few cables or nodes going bad wouldn't stop data movement, it would route around the bad spots via going through adjacent parts of the web. Seems we have to return to the original vision.

      Technically they usually route around damaged sea cables via a larger scale redundancy, such as through another continent, but the webbiness needs to be per sea based on the rate of damage so far.

      • Yes. Too much of the international cables are controlled by Alphabet (Google) and Meta (Facebook) these days. Now Amazon instead of owning shares of a consortium of monopolists it is owning them outright. Though that is not based on the book as I have not gotten to any part of it yet but it has undergone enshittification by not enforcing antitrust (outside of a few years ago and also generations ago (45+ish years), namely the 117th and it continued into the 118th congress in the U.S.A. - some international
        • by Tablizer ( 95088 )

          It will take a really annoying or long outage before people notice they've been screwed by Big Money.

      • by HiThere ( 15173 )

        That's the way the internet works on land these days, over any distance. Your multiple carriers all turn out to depend on the same infrastructure.

  • Really, what is so much traffic routed undersea? Local CDNs and geo targetting should be used more!
    • by PPH ( 736903 )

      Local CDNs do nothing for real time data (banking transactions, for example). But for the average bandwidth consumer, I suppose it doesn't matter where the TikTok chicks twerking originates from.

  • by slashkitty ( 21637 ) on Wednesday November 26, 2025 @11:10AM (#65819295) Homepage
    95% of INTERNATIONAL internet traffic is routed through undersea cable. The VAST MAJORITY of internet traffic here in the US is domestic, and not routed through undersea cables.
    • Re: (Score:3, Insightful)

      by Tablizer ( 95088 )

      But "95% of international traffic" is not the same as "95% of traffic". You are slicing the wrong pie, Happy Thanksgiving!

    • Yes on the international; it is also more than 95 percent of that type of internet traffic. I have had quite a few typos myself on here but it would be nice to have a fourth /. regular editor on here so they have more time to vet stories and summarize accurately more often of the time. Thanks though for bringing that important distinction.
  • According to sharks.

  • Who are those "many" who would assume that? Other than Bloomberg writers, I mean.

  • by Pinky's Brain ( 1158667 ) on Wednesday November 26, 2025 @02:31PM (#65819717)

    If sabotage becomes an explicit act of war on US/EU/Russian/Chinese territory it might cause some hesitation on all sides.

  • by Marful ( 861873 ) on Wednesday November 26, 2025 @03:50PM (#65819965)
    Lets make no mistake here, when the article mentions nation states intentionally sabotaging the cables and ships "dragging their anchors", these two things are one and the same.

    Russia and China have been caught repeatedly destroying undersea cables by dragging anchors "accidentally". There is no "accidentally" dragging an anchor any considerable distance.

    These cables are designed to be robust and long lasting (because replacement is expensive and a pain in the ass). Any damage is almost always intentional.

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