07 October 2025

Quantum-safe wireless communications are emerging as a critical frontier in safeguarding sensitive data against the evolving threat posed by quantum computing.

Traditional cryptography relies on complex mathematical problems that are currently difficult for classical computers to solve. However, the advent of powerful quantum computers threatens to break these encryption methods, exposing data to cyber risks.

To address this, industry leaders like Colt Technology Services, Honeywell, and Nokia are collaborating to explore quantum-safe networking solutions, particularly through satellite communications.

A key technology in this effort is Quantum Key Distribution (QKD), which enables two parties to share encryption keys securely, leveraging the principles of quantum mechanics. While QKD is highly secure, its current limitation to roughly 100km due to physical constraints on terrestrial fibre optics hampers widespread adoption. Moving QKD into space via low Earth orbit (LEO) satellites provides a promising solution for achieving global coverage, especially across transoceanic distances. The collaboration plans to trial space-based and subsea techniques, aiming to create resilient, quantum-resistant encryption methods.

“Nokia is helping our customers stay ahead when it comes to securing critical data through resilient defense-in-depth strategies. Quantum computing brings great promise, but it’s also a potential threat to the encryption models on which society has relied so far. This collaboration with Colt and Honeywell shows how space-based quantum-safe technologies can help protect networks, safeguarding sensitive information across every domain against future quantum threats,” says James Watt, Vice President and General Manager, Optical Networks, Nokia.

This initiative underscores a proactive approach to cybersecurity, targeting industries with vast amounts of sensitive information.