IoT Device Security

An IoT device is part of a larger product and system. It has hardware and software, but it also has local interfaces, network services, an update path, a management service, users, and an owner. Security has to hold across those connections. A secure device is not a device with one security feature switched on.

NIST's IoT device cybersecurity capability core baseline gives you a useful starting map. It groups device capabilities into identification, configuration, data protection, logical access to interfaces, software update, cybersecurity state awareness, and device security. The baseline is a starting point, not a universal checklist. Your device's function, deployment, users, physical access, and consequences of failure decide what the profile must add.

Start with the product boundary

List the device, its firmware, its boot process, every local and network interface, the mobile or web application, cloud services, installers, operators, and support staff. Then list the assets that matter: credentials, cryptographic keys, device configuration, firmware images, commands, telemetry, and personal or operational data.