Arqit invests in Sirius to expand quantum-safe defense communications

• Arqit Quantum announced a strategic investment in Sirius Computer to accelerate quantum-safe communications for defense and government customers.
• The investment will fund Crux platform development, deeper encryption integration and new joint products.
• Both companies will expand joint sales efforts across NATO members and allied nations, targeting UK and US defense departments.
• The partners are part of a winning consortium selected to provide secure networking services to NATO.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Arqit Quantum Inc. published the original content used to generate this news brief via GlobeNewswire (Ref. ID: 202610200900PRIMZONEFULLFEED9849448) on October 20, 2026, and is solely responsible for the information contained therein.