SIGNALQuantum·Jun 10, 2026, 11:16 AMSignal75Short term

Colt and Ciena Complete Quantum-Safe Transatlantic Network Trial

Source: The Quantum Insider

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Colt and Ciena Complete Quantum-Safe Transatlantic Network Trial

Insider Brief PRESS RELEASE — Colt Technology Services (Colt), the global digital infrastructure company, and Ciena (NYSE: CIEN), the global leader in high-speed connectivity, have completed one of the fastest quantum-safe data transmissions ever demonstrated and the fastest across a transatlantic route. The landmark trial successfully protected live data running across 6900km of Colt’s subsea and terrestrial network […]

Why this matters
Why now

The increasing maturity of quantum-safe cryptography implementations and the growing threat landscape necessitate advanced security solutions for critical data transmission.

Why it’s important

This development demonstrates a significant step forward in securing global communication networks against future quantum computing threats, impacting national security and economic stability.

What changes

Commercial networks are now proven capable of implementing quantum-safe encryption over long-distance, high-speed links, pushing the timeline for widespread adoption closer.

Winners
  • · Colt Technology Services
  • · Ciena
  • · Quantum Security Providers
  • · Sensitive Data Industries
Losers
  • · Adversaries with Quantum Computing Capabilities
Second-order effects
Direct

Increased adoption and standardization of post-quantum cryptography in critical infrastructure.

Second

Accelerated investment in quantum-safe hardware and software solutions across various sectors.

Third

The establishment of new geopolitical competition in quantum-secure networking capabilities.

Editorial confidence: 90 / 100 · Structural impact: 60 / 100
Original report

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