We use the word “cloud” so often that we have almost started to believe the digital world really lives somewhere above us.
Wi-Fi has no visible wires. A smartphone connects to a server thousands of kilometers away in a fraction of a second. A video call begins with a tap. Money moves between countries almost instantly. An AI model responds from a data center whose location the user may never know.
Everything feels as if the internet has finally escaped the physical world.
But go a few kilometers below the surface of the ocean, and the picture changes completely.
Down there, in the dark, lie the cables that carry much of the world’s international digital traffic.
And they may be one of the most underestimated points of vulnerability in the modern technological system.
In September, the internet suddenly remembered that geography still matters
In September 2025, damage to submarine cables in the Red Sea disrupted internet connectivity across parts of Asia and the Middle East. Users in countries including India, Pakistan and the United Arab Emirates experienced problems. Microsoft reported higher latency for some Azure traffic and rerouted data through alternative paths. At the time, the precise cause of the damage remained unclear.
There is an important detail in that story.
Azure itself had not “broken.”
The data centers were still operating. Servers were running. Applications still existed. The data had not disappeared.
The problem was somewhere between them.
And that is an important shift in how we should think about modern IT infrastructure: sometimes the most critical technology a company depends on is technology it has never seen, does not own and does not control.
More than 99% of international data does not travel by satellite
In the popular imagination, the global internet often looks like a network of satellites, towers, 5G antennas, Wi-Fi and clouds.
The reality is much more physical.
According to the International Telecommunication Union, more than 99% of international data traffic is carried by submarine telecommunications cables. These cables support financial transactions, cloud services, government communications and everyday internet access.
By 2026, the ITU estimated the combined length of commercial submarine cable infrastructure at more than 1.7 million kilometers. TeleGeography’s 2026 map showed 694 active and planned cable systems and 1,893 landing points.
Different organizations use slightly different methodologies, but the scale is clear.
Beneath the oceans is an almost invisible global infrastructure on which modern economies depend.
We built a digital civilization whose physical foundation literally lies on the seabed.
The surprising thing is how physical the digital economy still is
Inside a modern submarine cable are optical fibers.
Light carries data through them between continents.
Around those fibers are protective layers. Near shorelines, cables are reinforced further because shallow waters are particularly dangerous: ships, anchors, fishing gear and other marine activity create constant risk.
And that leads to an almost absurd contrast.
We talk about quantum computing, generative AI, autonomous agents and models with trillions of parameters.
But the operation of this extraordinarily sophisticated system can still be disrupted by… an anchor.
The ITU notes that a large share of cable failures is caused not by cyberattacks or highly sophisticated sabotage, but by ordinary human activity, especially fishing and ship anchors. In its 2025 statistics, the ITU attributed roughly 86% of cable damage to human activity.
It is almost a perfect metaphor for our technological era.
The more advanced the upper layers of technology become, the easier it is to forget the simple physical layer holding everything else up.
Cables fail all the time. Most people never notice
A damaged submarine cable is not an extremely rare event.
The ITU reports more than 200 cable repairs per year — several every week on average.
But the internet is designed with redundancy.
Traffic can be rerouted.
One path fails, and the data takes another.
That is why most people never know that somewhere on the ocean floor, a specialist repair vessel may be searching for a broken fiber-optic cable at that very moment.
The real problem begins when alternative routes are limited.
Or when multiple cables pass through the same geographic chokepoint.
Or when a country depends heavily on only a small number of international connections.
Or when an alternative route exists technically, but has far less capacity.
At that point, a “cable failure” stops being a telecom problem.
It becomes a banking problem, a cloud problem, a business continuity problem, a government services problem and, eventually, an everyday consumer problem.
Repairing the internet is harder than replacing a wire
This is where digital speed collides with physical reality.
Repairing a damaged submarine cable is not a matter of sending a technician with a toolbox.
The failure has to be located. A specialized vessel has to be organized. Permissions may be required. Customs and administrative procedures can become part of the process. The ship has to reach the area, recover the cable from the seabed, remove the damaged section, splice the fibers and lay the system back down.
In its 2026 report, the ITU highlighted several growing challenges: longer repair times, limited availability of repair vessels in some regions, complex permitting procedures and geographic concentration of infrastructure.
The result is a strange mismatch in time.
Information crosses an ocean in milliseconds.
Repairing the infrastructure that carries it may take days or considerably longer.
The digital economy moves at the speed of light.
Its physical infrastructure moves at the speed of a ship.
Submarine cables are now a national security issue
Another change has taken place almost quietly.
Submarine cables used to be viewed primarily as telecommunications infrastructure.
Today, they are also treated as strategic assets.
After a series of incidents involving underwater infrastructure in the Baltic Sea, NATO launched Baltic Sentry in January 2025, increasing the presence of ships, maritime patrol aircraft and surveillance assets in the region. In the preceding months, several energy and telecommunications connections had been damaged. Some incidents were investigated for possible sabotage.
That does not mean every damaged cable is the result of hostile action.
Far from it. Anchors and fishing activity remain major causes of failure.
But the uncertainty itself has changed how governments think about these systems.
A submarine cable is now simultaneously a commercial asset, a communications system and a security concern.
Now look at the same problem from a business perspective
This is where the subject stops being a story about distant oceans.
Imagine a company says:
“Everything we use is in the cloud.”
Fine.
But where is that cloud?
How is your country physically connected to that cloud region?
What route does the traffic take?
Is there a second path?
And is that second path genuinely independent from the first, or do both ultimately pass through the same infrastructure somewhere along the route?
Those are very different things.
A company may have two internet providers and believe it has achieved redundancy.
But if both providers ultimately rely on the same international route or the same physical chokepoint, the actual resilience may be far lower than it appears.
That is why mature conversations about business continuity have to move beyond servers, firewalls, backup and disaster recovery.
They also need to include infrastructure questions:
- How is our provider connected internationally, and are there physically independent routes?
- Where are our primary cloud regions, and what happens if one route degrades?
- Can critical applications tolerate higher latency if traffic is rerouted?
- Does the backup connection depend on the same underlying infrastructure?
- Have we actually tested failover, or are we simply assuming it will work?
Five questions.
But they can change the quality of an entire resilience strategy.
AI makes cables more important, not less
It would be easy to assume that the AI era would make the old telecom infrastructure less important.
The opposite is happening.
AI requires enormous amounts of data to move between users, data centers, cloud regions, CDNs, enterprise systems and compute clusters.
The more computing power becomes concentrated in large infrastructure hubs, the more important the connections between those hubs and the rest of the world become.
According to the ITU, investment in submarine infrastructure has risen sharply — from about $0.8 billion in 2015 to $9.7 billion in 2025 — with major technology companies taking an increasingly important role in financing new systems.
That makes sense.
If Big Tech once dominated the software layer of the internet, it now has growing incentives to secure access to the physical layer as well.
Cloud is becoming an infrastructure business in the most literal sense.
Even a landlocked country depends on the ocean floor
For Armenia, this topic may initially seem remote.
The country has no coastline and therefore no ocean landing stations of its own.
But landlocked does not mean disconnected.
International internet traffic still travels through terrestrial cross-border networks, which then connect into the wider global infrastructure — including submarine cable systems.
So for a country like Armenia, the resilience question looks slightly different.
Not:
How many submarine cables do we have?
But:
How many genuinely independent international routes do we have?
Geographic diversity — different directions, different operators, different points of interconnection — becomes a strategic feature of a digital economy.
The ITU’s 2026 work on submarine cable resilience specifically identifies geographical diversity as one of the core principles of a resilient global network.
This is no longer just a telecom issue.
It affects a country’s ability to host data centers, attract technology companies, support financial services and build infrastructure for AI.
We have spent too long looking only at what sits on top of the internet
For the last decade, the technology industry has been obsessed with the upper layers.
Applications.
Cloud.
SaaS.
AI.
Models.
Agents.
But underneath all of them is still the physical world.
Data centers need land and electricity.
Semiconductors need fabs and water.
Networks need fiber.
And the global internet needs oceans, repair vessels, landing stations and millions of kilometers of cable.
Perhaps the next stage of digital maturity begins when we stop treating infrastructure as something invisible.
Because invisible does not mean unimportant.
Sometimes the most important systems become invisible precisely because they work so well.
Until they stop working.
We call the modern internet the cloud.
But the cloud has a data center.
The data center has a power grid.
The network has routes.
And the global internet has a seafloor.
Maybe understanding the future of the digital economy sometimes requires us to stop looking up at the cloud — and start looking several kilometers down, beneath the ocean.