Colt and Ciena Complete Quantum-Safe Transatlantic Network Trial
thequantuminsider.com Jun 11, 2026

Colt and Ciena Complete Quantum-Safe Transatlantic Network Trial

AI-summarised brief · reviewed before publication

Colt and Ciena completed a quantum-safe data transmission trial between New York and London at 800GbE, using Ciena's WaveLogic 6 Extreme encryption technology with post-quantum cryptography capabilities. The trial demonstrated the feasibility of high-speed quantum-safe connectivity for various applications. The companies successfully protected live data across 6,900 km of subsea and terrestrial network infrastructure. This trial is significant as businesses move to protect their data from "harvest now, decrypt later" attacks, which could be possible as early as 2030. The trial showcased an 800GbE encrypted service, highlighting its speed, security, and performance.

💡 Why It Matters

  • · Quantum computing poses a real risk to current encryption methods, and this trial demonstrates a viable solution to secure customer data reliably across continents.
  • · High-speed quantum-safe connectivity can protect critical data from emerging threats.