RESOURCE
Arqit Quantum has made a strategic investment, amount undisclosed, in Sirius Computer, a secure computing and networking provider for defence, intelligence and critical national infrastructure. The companies say their Crux platform combines Sirius networking with Arqit's Sovereign Key Platform and NetworkSecure adaptors, runs on commercial devices alongside existing infrastructure, and that they were selected as part of a winning consortium to provide secure networking services to NATO.
Fabric Networks
Start with a conversation about your cryptographic posture.
The Quantum Insider reported on October 20, 2026 that Arqit Quantum Inc. has taken a strategic stake in Sirius Computer, Inc. The funds go to product development, integration with Arqit's encryption products and new joint offerings. Crux, the software based connectivity platform at the centre of the deal, is described as running on commercial devices and working alongside existing infrastructure, with applications in mobile devices, cloud and network systems and autonomous platforms such as uncrewed aircraft. The companies say they have been selected as part of a winning bidding consortium to provide secure networking services to NATO, with no contract value or timeline disclosed, and plan to pursue work across NATO members and allies including the UK Ministry of Defence and the US Department of Defense.
The NATO context lines up with the Alliance's Quantum Technology Roadmap of September 29, which commits to a quantum resilient communications pilot by the end of 2027 and to common standards for member procurement.
Fabric Networks delivers Arqit's NetworkSecure and Sovereign Key Platform in Canada as part of a solutions first offer: designed, supplied, installed and operated. What this announcement confirms is the design principle we sell on: the keys change, the hardware stays. A platform that rides on commercial devices beside existing infrastructure is exactly how a Canadian defence supplier working toward CPCSC, or a utility that cannot rip and replace, gets to quantum safe without a forklift. We do not claim NATO work on anyone's behalf. We do note that the Alliance's procurement standards flow down to Canadian suppliers.