Arqit and Sparkle achieve quantum-resistant encryption at the speed of light

LONDON, Dec. 03, 2025 (GLOBE NEWSWIRE) -- Arqit Quantum Inc. (NASDAQ: ARQQ, “Arqit”), a global leader in quantum-safe encryption, and Sparkle, a Tier 1 global telecoms operator, have successfully demonstrated quantum-resilient data transmission across Sparkle’s optical network in Greece.

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