iot security

A hands-on guide to hardening an always-on Raspberry Pi and using on-device AI for defense: apply a quick security baseline (updates, SSH keys, firewall, Fail2ban, unattended upgrades), then build a TensorFlow Lite “AI camera sentinel” for local person detection or run Frigate NVR in Docker (with/without Coral). Covers sandboxing, least-privilege, egress control, backups, and troubleshooting.