ESA Awarded Contract for Subsea Cable Backup System
The CableShield project will use satellite technology to protect critical global data connectivity from sabotage.
Updated on Oct. 6, 2026 in Cybersecurity
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The European Space Agency awarded a $1.68 million contract to neXat, Telesat, and Colt Technology Services to build a subsea cable backup system. Named CableShield, the project aims to mitigate risks to the global internet infrastructure, which relies on underwater cables for 99 percent of its connectivity.
Why it matters
Submarine cables are vital to international communication but remain vulnerable to accidental damage or intentional sabotage. This system provides a resilient alternative by automatically rerouting traffic through satellite networks when fiber infrastructure fails.
The system utilizes an OSS/BSS orchestration platform and standardized APIs to integrate infrastructure. It coordinates data rerouting between fiber networks and low-Earth orbit satellite constellations.
The players
European Space Agency
This intergovernmental organization is dedicated to the exploration of space and the advancement of satellite-based communication technologies.
neXat
This company acts as the prime contractor for the project and specializes in satellite connectivity orchestration and service management.
Telesat
This satellite operator provides space-based infrastructure and is currently developing its low-Earth orbit Lightspeed network.
Colt Technology Services
This telecommunications firm provides global fiber network infrastructure and enterprise-level connectivity solutions.
The details
Prime contractor neXat is leading the project alongside partners Telesat and Colt Technology Services Belgium. The service is designed to adhere to Pooling & Sharing Interface Definitions specifications to ensure seamless switching between terrestrial and space-based capacity.
Timeline
The European Space Agency awarded the contract in October 2026.
The development and validation program will span 18 months.
Telesat plans to launch its Lightspeed service in Q1 2028.
The CableShield system is scheduled for a commercial launch in 2028.
The Tech Race
CableShield marks a significant shift in infrastructure design by formalizing the integration of space-based backup into the global fiber-optic backbone. It positions satellites not just as an auxiliary service, but as a critical fail-safe for the existing subsea network.
This project aims to prevent widespread internet outages, ensuring that global businesses and users remain connected even if primary cables are disrupted. It reduces the risk of long-term service latency or complete connectivity loss for international data transfers.
The takeaway
The CableShield system demonstrates how satellite constellations will become a permanent, automated safety net for the aging global undersea cable network. As geopolitical concerns over infrastructure sabotage rise, this hybrid approach sets a new standard for national and international digital resilience.
What happens next
The project will enter an 18-month development and validation phase, followed by a targeted commercial launch aligned with the activation of Telesat's Lightspeed service in 2028.
Further reading
For more on the current state of digital infrastructure protection, visit our Cybersecurity section.
Source note: This article includes information reported by Datacenterdynamics.
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Should the government invest more in securing critical infrastructure like subsea cables against potential sabotage?
