Microsoft Confirms Red Sea Subsea Cable Cuts Disrupting Internet Services

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Microsoft has confirmed that multiple subsea fiber-optic cables in the Red Sea have been cut, leading to internet connectivity issues across several regions. The cables, which include SMW4 and IMEWE, are vital links connecting the Middle East, Asia, and other parts of the world.

Subsea cables carry nearly 99% of global internet traffic, connecting continents through thousands of kilometers of fiber-optic lines laid across the ocean floor. With more than 500 active subsea cables worldwide, even a few disruptions can slow down or interrupt internet services for millions of users.

Impact on Services and Connectivity

Microsoft said that Azure cloud services are among the systems affected, with rerouting already underway to minimize disruption. However, users have reported increased latency and slower access speeds as traffic is being diverted through alternative routes.

Connectivity across the Middle East and Asia is expected to be the most severely impacted, as these regions heavily rely on the Red Sea cables to link with Europe and other global networks.

How Do Cable Cuts Happen?

The exact cause of the disruption has not been confirmed. Subsea cables are vulnerable to a range of risks, including damage from anchors, earthquakes, ship activity, or natural wear and tear. In some cases, questions about intentional sabotage have also been raised in past incidents, though no details have been provided in this case.

This incident highlights the fragile nature of the infrastructure that underpins the global internet. While the internet may feel “wireless” to most people, it is actually powered by a vast web of physical cables lying silently under the sea. These cables carry the weight of the global economy, international communication, and digital security.

The Red Sea cable cuts serve as a reminder of how critical subsea infrastructure is to global connectivity. From streaming and banking to government communication, much of the modern world depends on these invisible undersea links. Any disruption, even a temporary one, has ripple effects across countries and economies.