Connectivity vs Cybersecurity
Segment spacecraft networks by trust level and consequence, implementing NIS2-compliant isolation controls that preserve operational connectivity without exposing critical command paths.
CyberTRIZ analysis · Space contradiction TSI005 · one of 8,235 worked contradictions published by CyberTRIZ.AI
Regulations
Business Context
Connected spacecraft architectures enable remote operations, inter-satellite coordination, distributed processing, software updates, data sharing, and integration with commercial and government networks. Each additional interface, however, can increase the system’s cyberattack surface and create new dependencies. Eliminating connectivity improves isolation but removes many operational and architectural benefits.
Space TRIZ Resolution
Connectivity should be segmented according to function, trust level, and consequence rather than protected through one uniform boundary. Authentication, network partitioning, least-privilege access, protected command paths, secure update mechanisms, and controlled isolation modes can preserve necessary connectivity while limiting the ability of compromised elements to affect critical spacecraft functions.
Applicable TRIZ Principles
Principle 1 – Segmentation divides networks into security and functional zones.
Principle 2 – Taking Out isolates compromised or unnecessary connections when required.
Principle 11 – Beforehand Cushioning establishes protection and recovery mechanisms before cyber incidents occur.
Expected Outcome
Greater operational connectivity
Reduced cyberattack propagation
Stronger protection of critical functions
Improved network resilience
Decision Indicators
Early indicators include:
New interfaces provide direct paths toward critical systems.
All connected systems operate within similar trust boundaries.
Cybersecurity requirements lead teams to disable useful connectivity entirely.
Compromised interfaces cannot be isolated independently.
Software updates require temporary weakening of normal security controls.