How to Build a Security Bench Test for Mission-Critical UAS
Mission-critical Unmanned Aircraft Systems (UAS) are increasingly used in defence, surveillance, search and rescue, border control and critical infrastructure protection. In this article, the term UAS refers to military, defence, dual-use and public-safety unmanned aircraft systems, including the aircraft, ground control stations (GCS), communications links and supporting digital infrastructure.
As Unmanned Aircraft Vehicles (UAV) become core assets in defence, border control, emergency response and critical infrastructure protection, cybersecurity has become as important as flight performance. Before deployment or certification, manufacturers and operators increasingly rely on security bench testing: a controlled, laboratory-based evaluation of a UAV's cyber resilience, architecture and lifecycle security.
This guide explains how a professional security bench test for UAS could be structured, what it evaluates and why it is a critical step for manufacturers operating in regulated and defence environments. This describes a defensive and non-operational methodology, suitable for public discussion and compliant with NDA and security requirements.
So, what is a UAS Security Bench Test?
A security bench test is a controlled, isolated environment where UAS are evaluated off-mission, without live operations or field deployment.
Its goals are to:
- Identify cyber and systemic risks early
- Assess resilience against realistic failure and threat scenarios
- Support certification, procurement and export requirements
- Reduce operational, legal and reputational risk
Unlike field testing, a bench test focuses on architecture, interfaces and lifecycle security, not directly a tactical exploitation.
What are the core principles of a professional bench test?
Based on our experience, we believe that any bench test should follow five principles:
Isolation
No connection to live operational networks or systems.
Authorization & Governance
All testing performed under explicit legal authorization and scope.
Reproducibility
Tests are documented, repeatable and auditable.
Defensive Focus
Emphasis on risk identification and mitigation, not weaponization.
Auditability
Results usable by engineers, management and certifying authorities.
These principles are essential for trust in defence and government contexts.
Bench Test Architecture
A UAS security bench test does not require a fully operational aircraft in flight. Instead, it uses representative components and simulations.
Typical elements include:
- UAV core systems
- Ground Control Station (GCS)
- Simulated communication channels
- Firmware and mission software
- Payload and sensor interfaces
- Backend, cloud or data services
This modular approach allows risks to be assessed safely.
Security Testing Layers
System Architecture & Attack Surface Analysis
Understand how the UAV system is designed and where structural risks may exist. Typical focus areas:
- Trust boundaries and domain separation
- Dependency mapping
- External integrations
- Update and maintenance paths
Firmware & Embedded Software Assurance
Evaluate robustness and maintainability of onboard software. High-level assessment areas:
- Secure boot concepts
- Firmware update mechanisms
- Credential and key management
- Basic hardening practices
Communications & Interfaces Resilience
Assess the security and reliability of data flows. Evaluation themes:
- Authentication and authorization of links
- Cryptographic design (conceptual level)
- Separation of command/control and payload data
- Behaviour under degraded or lost connectivity
IoT, Cloud & Ecosystem Security
Modern UAVs are part of a larger digital ecosystem. This testing layer evaluates:
- Cloud platforms and APIs
- Mobile or portable control devices
- Data storage and processing
- Supply chain and third-party dependencies
Operational Lifecycle & Long-Term Security
Ensure the system remains secure beyond initial deployment. Key aspects:
- Identity and access management
- Logging and monitoring capabilities
- Update strategy over time
- Secure decommissioning
Defence customers increasingly demand proof of lifecycle security, not just initial compliance.
Ethics, Safety and Legal Assurance
Any discussion of UAS security testing should explicitly state:
- All testing is conducted under authorization
- No live or operational systems are affected
- No vulnerabilities are disclosed publicly
- The objective is prevention, resilience and compliance
- This transparency builds trust with manufacturers and government stakeholders
Why Independent Bench Testing Matters
For UAV manufacturers, independent security bench testing helps to:
- Enter regulated and defence markets faster
- Reduce risk before major sales or deployments
- Strengthen credibility in procurement processes
- Avoid costly redesigns or reputational damage
- In modern defence ecosystems, security assurance is a competitive advantage
Security bench testing is no longer optional for military and dual-use UAVs. It is a step towards resilience, certification and long-term operational trust. Independent, controlled and defensively focused testing allows manufacturers and operators to move forward with confidence, even in high-risk scenarios.