π Case Study
IIoT Sensor Network Security for Tailings Monitoring β Copper Mine, Chile
Use of consumer-grade LoRaWAN gateways with default credentials; no sensor identity attestation
ποΈ Project Overview
Deployment of 420 wireless piezometers, inclinometers, and seepage sensors across 3 tailings dams
π― Challenge
Use of consumer-grade LoRaWAN gateways with default credentials; no sensor identity attestation
π§ Design Approach
Adoption of LoRaWAN Class B with MAC-layer encryption, hardware-bound device identities (SE050), and blockchain-backed audit log for sensor readings
π Design Diagram
AI-generated project design illustration
π Key Calculations
Sensor Identity Attestation Rate
Attested Sensors / Total Sensors Γ 100
Result: 100%
Prevents spoofed or compromised sensor data ingestion
Audit Log Tamper Resistance
SHA-256 chain depth Γ block finality time
Result: 12.7 hrs
Provides forensic traceability within regulatory reporting windows
π Results
Achieved ISO/IEC 27001 Annex A.8.2.3 compliance; enabled automated regulatory submission to SERNAGEOMINπ‘ Lessons Learned
- β’LoRaWAN security requires MAC-layer controlsβnot just application-layer encryption
- β’Hardware secure elements (HSMs) are mandatory for high-consequence IIoT deployments
β Key Takeaways
- 1LoRaWAN security requires MAC-layer controlsβnot just application-layer encryption
- 2Hardware secure elements (HSMs) are mandatory for high-consequence IIoT deployments