Network Security for IoT Devices
As the Internet of Things expands, securing the network layer becomes critical. Devices often operate on constrained networks, making traditional security measures insufficient. In this discussion, we explore best practices, emerging protocols, and real‑world case studies for protecting IoT deployments.
Key Challenges
- Limited processing power and memory on edge devices.
- Diverse communication protocols (MQTT, CoAP, LwM2M).
- Dynamic topology and frequent device onboarding/offboarding.
Best Practices
- Zero‑Trust Architecture: Verify every device and data flow.
- Mutual TLS (mTLS): Use certificate‑based authentication.
- Network Segmentation: Isolate IoT devices into dedicated VLANs.
- Secure Boot & Firmware Signing: Prevent malicious code injection.
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