Babcock and Arqit demonstrate quantum safe military communications network designed to protect battlefield data from future cyber threats

By Hannah Miller (Defence Industry Europe)

Electronic Warfare |
Babcock and Arqit demonstrate quantum safe military communications network designed to protect battlefield data from future cyber threats

Photo: Babcock.

Babcock and Arqit Quantum have demonstrated a secure communications network designed to protect sensitive military data against current and future cyber threats, including risks associated with quantum computing. The trial at DVD 2026 in Millbrook used Arqit’s advanced encryption technology to secure operational scenario data transmitted between separate locations.

Data was collected at one site, encrypted using Arqit software and securely transmitted to Babcock’s Ground Deployed Advanced Mortar System at another location during the event. The demonstration showed how critical information could be exchanged between a headquarters and a deployed platform through a layered encryption network in a contested environment without using physical inline encryptors.

Babcock said the architecture is intended to support rapid and better-informed battlefield decision-making while keeping sensitive operational information protected. The demonstration followed a Memorandum of Understanding between the companies to explore how Babcock’s mission systems, systems integration, digital engineering and through-life support capabilities could be combined with Arqit’s cyber security, cryptographic and secure networking expertise.

Babcock’s approach brings together technologies to create secure end-to-end communications networks across a range of Internet Protocol bearers. These include 4G and 5G, Wi-Fi and satellite communications, alongside legacy tactical radios and newer mobile ad hoc network radios.

The resulting network can be integrated across a wide range of crewed and uncrewed land, maritime and air platforms. Babcock used the demonstration to show how its systems integration capabilities could combine different communications technologies within a single secure architecture.

The event also demonstrated the role of Babcock’s Ground Deployed Advanced Mortar System within a digitally connected battlefield. Based on ST Engineering’s proven mortar design, GDAMS combines mobile, network-enabled firepower with digital integration to support faster target engagement.

“Armed forces need confidence their critical data can be transmitted quickly, reliably and securely, keeping sensitive information protected at all times,” said Louise Atkinson, Chief Executive of Babcock’s Land and Mission Systems business. “As technology evolves, so do cyber threats, and the emergence of quantum computing will challenge many of today’s encryption methods. We’ve demonstrated how we can integrate best-in-class technologies to create resilient and secure communications networks that help protect operational data against future quantum-enabled threats.”

“Modern operations require assured secure networks capable of working across multiple communication bearers,” said Paul Feenan, Arqit General Manager for Government & Defence. “Arqit’s software-defined encryption, partnered with Babcock’s state of the art Advanced Layered System Architecture, can be deployed across networks from core to edge, enabling customers to keep intelligence and battlefield data secure against current and future threats.”

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