en.Wedoany.com Reported - Colt Technology Services and Ciena have jointly completed a transatlantic quantum-safe data transmission trial, one of the fastest of its kind to date. Conducted on Colt's 6,900-kilometer submarine and terrestrial network between New York and London, the trial successfully protected real-time data using Ciena's WaveLogic 6 Extreme (WL6e) encryption solution.
Trial data showed that data can be securely transmitted at 800Gb Ethernet (GbE) service rates, with speeds sufficient to transfer data center-scale volumes across the North Atlantic in seconds while countering growing quantum threats. Enterprises are actively protecting data against "harvest now, decrypt later" attacks, where malicious actors intercept and store data in transit, awaiting future quantum computing capabilities to break current encryption methods. Research indicates that 69% of organizations view quantum computing as a real risk to current encryption, and 46% believe most of their data could be compromised. This trial by Colt and Ciena demonstrates that high-speed quantum-safe connectivity can reliably protect intercontinental customer data on one of the world's busiest data corridors.
This trial is the latest in a series of quantum-safe encryption tests led by Colt on transatlantic submarine networks. Key features include: Speed—800GbE is still in early adoption, with most deployed long-haul and submarine systems operating at 100GbE or 400GbE; the trial successfully demonstrated 800GbE encrypted services across the Atlantic. Security—Ciena's WL6e 1.6T quantum-safe encryption solution provides post-quantum cryptography (PQC) algorithms, enabling high-capacity secure connections at extreme bandwidths over any distance. Performance—the trial showcased excellent optical performance, stability of submarine infrastructure, and the ability to meet AI traffic protection demands.
Buddy Bayer, Chief Operating Officer of Colt Technology Services, stated that quantum computing is redefining security challenges for global connectivity, and this trial marks a significant step in intercontinental data protection, proving that quantum-safe protection can be achieved at practical scale. Dino DiPerna, Senior Vice President of Global R&D at Ciena, noted that as network demand surges, operators are raising security thresholds to address threats posed by quantum computers, and this trial demonstrates the role of post-quantum cryptography and proven high-performance optical encryption in long-haul and submarine networks.
Based on this trial and other successful optical network tests, Colt can offer quantum-safe services to meet diverse customer needs. These services include solutions based on post-quantum cryptography (PQC), quantum key distribution (QKD), symmetric key infrastructure (SKI), and hybrid models, covering both terrestrial and submarine networks. The solutions are suitable for enterprises seeking resilient secure global connectivity, global content providers exploring quantum-safe integration, hyperscalers and emerging scale enterprises, financial institutions and healthcare organizations needing to protect sensitive data in transit, and government and defense organizations prioritizing national security and compliance.
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