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Deep & Emerging Tech·October 20, 2026·1 min read

Arqit Invests in Sirius to Develop Quantum-Safe Defence Communications

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Arqit’s strategic investment in Sirius for quantum-safe defense communications is another data point that critical infrastructure buyers are moving ahead of PQC mandates. If you touch defense or national security supply chains, you need a concrete PQC migration story before procurement forces one on you.