Internship← Internet of Things (IoT) learning pathInternet of Things (IoT) · Module 8 of 10
IoT security
Protect devices, data and networks.
📖 Key ideas
- Change default passwords; use unique credentials per device.
- Encrypt communication (TLS/MQTT over TLS).
- Secure firmware updates (signed OTA).
- Network segmentation for IoT devices.
- Disable unused ports/services and keep firmware patched.
💡 Real-life example: IoT security is fitting every smart device with a proper lock, not leaving the factory key in the door.
Default credentialsFactory passwords
OTA updateOver-the-air firmware update
Firmware signingVerifying firmware authenticity
SegmentationIsolating devices on networks