Quantum Threat to Satellite Security Highlighted at CyberSat 2026

• •Quantum computing poses a significant threat to satellite communications.
• •The 'Harvest Now, Decrypt Later' tactic allows adversaries to exploit current encryption.
• •Crypto-agility is essential for securing satellite networks against future quantum attacks.

At CyberSat 2026, Eddy Zervigon, CEO of Quantum XChange, addressed the urgent threat quantum computing poses to satellite security. He emphasized the risk of 'Harvest Now, Decrypt Later' attacks, where adversaries intercept encrypted communications to decrypt them later using quantum computers. The panel discussed the vulnerabilities in satellite communications and the need for crypto-agile defenses, as much of the existing infrastructure was not designed with quantum threats in mind. Zervigon pointed out that upgrading satellite systems post-launch is challenging and costly. The discussion highlighted the importance of government policy and industry collaboration in transitioning to post-quantum cryptography. Quantum XChange's Phio TX platform was presented as a solution to manage cryptographic methods flexibly. The urgency for the space industry to act now was a central theme, given the critical nature of satellite networks for national security and essential services.