Quantum Computing Is About to Become a National Security Problem in Orbit

In a new SpaceNews opinion piece, Quantum XChange CEO Eddy Zervigon lays out why quantum computing is a mission assurance problem for the commercial space industry, not a narrow cybersecurity one. As low Earth orbit grows more contested, satellite operators face a widening set of threats from nation-states that could use quantum for covert, hard-to-attribute gray-zone operations.

Zervigon points out that the threat is already here. Adversaries are running “harvest now, decrypt later” campaigns, collecting encrypted traffic today to break once a cryptographically relevant quantum computer arrives, an event some estimates now place as early as 2029. For space companies the exposure is unusually long-lived: satellite architectures, command-and-control systems and government program data hold strategic value for years or decades, and once that traffic is captured, no future patch can un-expose it.

The bigger risk, he argues, is manipulation rather than decryption. The same cryptography that keeps data private also authenticates commands, verifies identities and confirms that telemetry has not been altered. When it fails, an adversary could forge tracking data and corrupt collision-avoidance decisions in an orbit already crowded with more than 18,000 active satellites, tamper with mission downlinks that defense, maritime and commodity customers rely on, or step directly into the control loop, all while systems appear to work normally.

His advice for operators is to start now: lead with crypto-agility rather than an endless inventory, adopt the finalized NIST post-quantum standards, align with NSA’s CNSA 2.0 timeline, prioritize assets by how long they must stay confidential, and protect data integrity, not just confidentiality.

Read the full article on SpaceNews.