Understanding the Best Secure Communications Networks for EW

by April Miller

The modern electromagnetic battlespace shifts rapidly as near-peer adversaries advance their electronic warfare (EW) capabilities. Reliable communications directly affect situational awareness and operational coordination, yet the interconnected radio and command systems that modern forces depend on can create new cybersecurity risks. Building secure communications networks for EW requires organizations to balance connectivity with resilience against detection and interception.

The Vulnerability of Electronic Signatures in Modern Warfare

Modern forces face a primary challenge as hostile actors analyze electromagnetic patterns and use specialized tools to detect field operations. Medical teams provide a prime example of this risk. Opponents can easily acquire commercial medical equipment to analyze electronic footprints and deploy specialized detection tools, known as sniffers, on drones or remote sensors.

A basic network diagram could illustrate this exposure by showing wireless medical devices communicating with a workstation while tactical radios connect personnel with a command node. Each transmitting device and wireless link contributes to the broader electromagnetic footprint that forces must manage.

The increased reliance on wireless communications and data sharing expands the electronic environment that defense teams must monitor. This creates a difficult balance between maintaining connectivity and limiting unnecessary transmissions that could expose sensitive information. Emissions control procedures can address this problem by managing when systems transmit and controlling factors such as frequencies and bandwidth.

How Network Compromise Impacts Operations

When networks are jammed or intercepted, the consequences jeopardize mission outcomes and the safety of deployed personnel. Forces must plan for environments where communications are denied or degraded rather than assuming uninterrupted connectivity will remain available throughout deployments.

Potential consequences include disrupted coordination and reduced confidence in the networked systems that commanders rely on for real-time decision-making. If one transport path fails, a resilient architecture should provide an alternative route rather than isolating the affected node.

The U.S. Army’s Integrated Tactical Network provides a concrete example of this multipath approach. It combines applications, devices and network transport with multiple communications pathways designed to improve resilience in contested or congested environments.

When hostile actions target infrastructure or trusted access points, the effects can cascade across multiple interconnected missions simultaneously. Effective cybersecurity policies must account for direct network intrusions and the vulnerabilities arising from dependencies on supporting digital infrastructure that may be compromised or unavailable in contested scenarios.

Strategies for Building Secure Communications Networks for EW

Building secure communications networks for EW demands a multilayered approach that addresses both technical vulnerabilities and operational realities. Key strategies include the following approaches.

Agnostic Transport Diversity

Enhancing network resiliency involves agnostic transport diversity to increase the number of communication pathways available to forces in the field. This architecture combines line-of-sight tactical radios, satellite communications (SATCOM) and other available bearers. Software-defined networking can then help prioritize available pathways as conditions change.

Power Control and RF Footprint Minimization

According to Silvus Technologies, power control features can minimize a radio’s RF footprint by dynamically throttling power to the minimum amount necessary to maintain connectivity. Keeping transmissions at minimal strength reduces the likelihood of detection while preserving operational effectiveness.

Zero-Trust Principles

Continuous authentication and network segmentation limit the impact of compromised accounts or devices. A zero-trust approach can place tactical endpoints and command systems into separate security segments while applying identity and access policies before allowing communication between them.

Encryption and Identity Management

Secure identity management and authenticated updates safeguard information moving across tactical networks. Encryption protects data in transit while verified software patches prevent opponents from introducing malicious code.

Testing and Incident Response

Regular testing and incident-response exercises help teams identify weaknesses before deployment into contested environments. Exercises can simulate loss of a SATCOM link, radio-frequency interference or an unavailable network node and confirm whether traffic shifts to an alternate path as designed.

The Future of Software-Defined Networks

Some defense research initiatives are exploring software-defined networking and formal methods to strengthen privacy and resilience in future communications systems. Programmable network functions may support faster configuration changes and policy enforcement across different communications platforms.

Organizations like the Defense Advanced Research Projects Agency (DARPA) explore how formal methods can provide stronger guarantees for network security. For example, DARPA’s Resilient Anonymous Communication for Everyone program developed technologies for distributed messaging systems that can maintain confidentiality and integrity while concealing communication information. It distributes encrypted messages across network resources while limiting the metadata available to adversaries.

Automation and artificial intelligence-assisted network management could help teams detect anomalies and maintain connectivity. For example, software could identify congestion or an unavailable transport path and recommend routing traffic through another authorized connection. Interoperability and open standards remain important considerations when governments evaluate future architectures that must integrate with existing platforms.

Securing the Tactical Edge

Organizations must integrate cybersecurity measures, network resilience and careful control of electronic exposure to maintain operational effectiveness. Software-defined architectures can also improve adaptability, but leadership must harden the code and control layers to prevent these platforms from becoming new attack vectors.

The most effective secure communications networks for EW balance reliable connectivity with disciplined information protection. Teams that embed these principles into their planning will be better positioned to sustain mission-critical communications under pressure.

About the Author

April Miller is a Senior Writer at ReHack. She has more than 5 years of experience writing on cybersecurity. You can explore more of her work at ReHack.com or connect with her on LinkedIn.

Photo by Magda Ehlers