Cyber-Defense for Space Systems: AI Anomaly Detection That Never Sleeps

Introduction

With 8,000+ active satellites and terabytes of telemetry flowing daily, space assets are prime cyber targets. Traditional, after-the-fact security can’t keep up. AI anomaly detection gives you continuous, sub-second visibility—catching subtle, malicious deviations before they become mission failures.

What’s changed in the threat landscape

  • Unique constraints: No on-orbit patching or easy forensics—prevention and instant detection are essential.
  • Deceptive failures: Solar radiation and EMI can mimic attacks; signatures alone aren’t enough.
  • Modern vectors: Command/link hijacking, supply-chain implants, and telemetry/data manipulation.

How AI anomaly detection works

  • Telemetry baselining: Models learn a satellite’s normal behavior across power, thermal, attitude, comms, and payload streams.
  • Multi-temporal analysis: From millisecond command bursts to long-horizon orbital drift, AI flags out-of-family patterns.
  • Hybrid ML stack: Unsupervised (isolation forests, one-class SVMs, autoencoders) + deep temporal nets (RNN/LSTM) for rare and novel events.
  • Confidence + context: Alerts include likelihood, impacted subsystems, and recommended actions to reduce false positives.

Netray’s approach

  • Real-time engine: Sub-second detection, <0.1% false-positive rate, and >99% monitored uptime for always-on missions.
  • Adaptive learning: Mode-aware models (eclipse, station-keeping, payload ops) that evolve without drifting.
  • Federated protection: Share learned threat patterns across fleets—without sharing raw mission data.
  • Easy integration: CCSDS, custom TM/TC, REST; streams into SOC/SIEM and mission control with role-based access and full audit trails. 

Where it’s used

  • Constellations: Spot coordinated, low-signal anomalies across many spacecraft.
  • Critical infrastructure: Command authentication checks, payload data integrity, orbital maneuver validation.
  • Commercial ops: SaaS deployment that scales from CubeSats to GEO platforms—no heavy lift required.

Compliance & resilience

Aligned to NIST CSF and CISA space guidance, with reporting for ISO/IEC 27001. Road-mapped for quantum-resistant methods and autonomous responses when light-time or comms loss demands it.

Outcomes you can measure

  • 95% faster mean time to detect (MTTD)
  • 87% fewer false alerts routed to humans
  • 99.7% monitoring availability
  • Sub-second response for high-priority events.

Bottom line

Space is now a contested domain. AI-based anomaly detection gives you the only scalable way to monitor massive telemetry streams, separate physics from malice, and protect missions in real time.

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