Sparkle and Hellas Sat Achieve Greece-Cyprus Quantum-Safe Satellite Connection

Satellite path: Sparkle and Hellas Sat ran a quantum-safe satellite connection on a live GEO hop of about 72,000 kilometers (Cyprus uplink to the satellite, downlink to Greece).Prior ground test: The pair announced a quantum-safe IPsec PoC between two data centers in Greece on March 19, 2026.Commercial stance: The operators will now evaluate quantum-safe satellite services for remote and mission-critical enterprise sites.Sparkle and Hellas Sat on September 2, 2026 reported a live quantum-safe satellite connection between Greece and Cyprus. The trial extends Sparkle Quantum Safe Interconnect (QSI), a software post-quantum overlay on existing IPsec virtual private networks offered as a Network-as-a-Service add-on, across a geostationary radio path of about 72,000 kilometers (Cyprus uplink to the satellite, downlink to Greece) between Sparkle’s Metamorfosis (Metamorfosi) data center near Athens and Hellas Sat infrastructure in Cyprus. The overlay is meant to protect traffic against store-now-decrypt-later capture as the two operators weigh commercial satellite services for remote and mission-critical sites.The operators moved QSI from a ground IPsec tunnel onto a live geostationary circuit. QSI is a software post-quantum overlay on existing IPsec virtual private networks, not quantum key distribution and not a quantum-optical satellite payload.The announcement presents the trial as the first use of this quantum-safe protection on a satellite link between Greece and Cyprus.Antonella Sanguineti, Head of Networking, Cloud, Security & Identity Solutions at Sparkle, said QSI “can be deployed consistently across different network layers, connectivity domains, and operational environments” for customers requiring secure, resilient connectivity across geographically distributed sites.The satellite trial is framed as a step toward commercial quantum-safe satellite services, not as a signed customer contract. No contract value, launch date, or named customer was disclosed. By combining our satellite infrastructure with Sparkle’s QSI solution, we can now evaluate the commercial deployment of quantum-safe satellite services for enterprise customers operating across distributed, remote, and mission-critical locations. “By combining our satellite infrastructure with Sparkle’s QSI solution, we can now evaluate the commercial deployment of quantum-safe satellite services for enterprise customers operating across distributed, remote, and mission-critical locations,” said Constantinos Kassianides, Director of Ground Operations at Hellas Sat.Sparkle and Hellas Sat moved QSI onto a live Greece-Cyprus satellite hop and will now test commercial remote-site offers.Find out more here.—Further articles, reports, and the latest quantum computing news may be found at The Qubit Report.Classiq signed a Scientek go-to-market agreement and a separate Kensho market-development partnership to expand Classiq quantum software in Taiwan. Scientek will work semiconductor, research, university Fidelity Digital Assets published a September 1, 2026 research note on Bitcoin quantum resistance, written by Daniel Gray. The note says a future cryptographically relevant U.S.

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