The U.S. must defend the final frontier against cyberattacks

As recent American military operations show, space underpins American forces’ ability to operate globally with unmatched precision. Its strategic importance is reflected in the President’s Cyber Strategy for America and the Joint Staff’s integration of space into non-kinetic effects alongside cyber, electronic warfare and information operations.

Through the United States Space Force and initiatives like the Golden Dome missile defense shield, space has evolved from an enabler of operations to a contested and actively targeted domain of operations. 

The Intelligence Community’s 2026 Annual Threat Assessment warns, “Adversaries are using jammers against U.S. satellites, and the risks stemming from cyber attacks against satellite communications are also growing.” 

Space has become a battleground for cyber warfare, and maintaining U.S. superiority requires immediate, coordinated action to counter evolving threats.

The state of space 

With roughly 17,000 artificial satellites in Earth orbit today, according to the European Space Agency, space no longer reflects the peaceful norms envisioned in the 1967 Outer Space Treaty. It is now congested, competitive and increasingly contested by governments, militaries, businesses and private organizations. This increased presence has dramatically expanded the attack surface for cyber threats and introduced a growing pool of adversaries targeting critical space systems.

State-sponsored actors, cyber criminals and activist groups have demonstrated both intent and capability to compromise space systems. The 2022 ViaSat cyberattack underscored how such threats can serve as force multipliers in kinetic military operations. And penetrating these systems is not cost prohibitive. With just $750 in off-the-shelf equipment, researchers from the University of California San Diego and University of Maryland found nearly half of 39 tracked satellites transmitted unencrypted signals, exposing vulnerabilities.

Full-spectrum cyber for space

No single measure alone can ensure the security required to protect vulnerable space systems against increasingly sophisticated cyber threats. That’s why we need a full-spectrum integrated cyber approach to secure our new and legacy space systems.

Protecting these legacy assets, many developed before modern threats emerged, requires a comprehensive strategy with a mix of threat intelligence, cyber vulnerability assessments, resilience planning, real-time monitoring, intrusion detection systems and response protocols. 

The joint report, “Securing space, Cyber security for low earth orbit satellite communications,” issued by the National Security Agency, Australian Signals Directorate, Australian Space Agency, Communications Security Establishment Canada and the National Cyber Security Centre New Zealand, outlines practical challenges and actionable mitigations to securing satellite communications. 

Of the multitude of recommendations in this report, among the most salient involve efforts to secure our legacy infrastructure. Operators must rigorously assess vulnerabilities across hardware, firmware, networks and software; retrofit protections like encryption, multi-factor authentication and anomaly detection; continuously monitor systems with ready-to-execute protocols; and prioritize secure-by-design upgrades with resilient, tamper-resistant architectures.

As adversaries exploit digital ecosystems and leverage advancements like AI to increase speed, scale and precision of attacks, today’s systems must be built with robust, adaptive and integrated cyber resiliency. This means we must:

• Prioritize Secure Development Lifecycles: Next-generation satellites and ground systems should be built with secure-by-design principles from inception. This entails integrating cybersecurity at every stage of system architecture, adhering to international cyber standards and conducting rigorous validation through red-teaming and threat modeling.
• Implement advanced threat detection and AI: Innovations in artificial intelligence and machine learning open new possibilities for dynamic, real-time threat detection and system health monitoring. Next-generation systems must leverage these tools to automate responses to evolving cyber threats.
• Adopt quantum-resistant encryption: As quantum computing capabilities loom closer, it is vital to transition toward post-quantum cryptographic standards. Future inter-satellite and ground communication protocols should incorporate quantum-resistant mechanisms to prevent future compromise. Technologies like Viasat’s HaloNet, which includes a reprogrammable, space-qualified cryptographic engine, represents a forward-thinking capability that enables future security. 
• Strengthen the supply chain: With the increased integration of commercial off-the-shelf components, ensuring transparency and accountability in space system supply chains is mission critical. Operators and builders must enforce Software and Hardware Bills of Materials and implement tamper-evident manufacturing processes to prevent entry points for adversaries.
• Enable cross-domain integration: Future systems will depend on seamless integration between terrestrial and non-terrestrial networks, such as 5G/6G connectivity. Designing for integration across domains will ensure seamless operations while requiring harmonized security protocols and cyber defense strategies.

Next steps

Securing the final frontier is a national security imperative for America’s space leadership in the 21st century.

To meet this moment, space system operators — aligned with guidance from agencies like the National Security Agency and the U.S. Space Force — must act decisively, conduct continuous vulnerability assessments led by offensive cyber experts, rapidly remediate vulnerabilities across the entire architecture and supply chain and harden systems against both known and emerging attack vectors. 

For developers of next-generation systems, resilience must be engineered, not added later. These efforts should encompass end-to-end secure design frameworks, post-quantum crypto integration and be validated through continuous threat simulation and red teaming. 

Adopting a full-spectrum cyber approach to securing our space infrastructure is not easy, but it is essential for the U.S. to maintain a durable operational advantage in the space domain.

Bob Coleman is the CEO of Nightwing.

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