Why Is Device Authentication Necessary for the IoT?

Why Is Device Authentication Necessary for the IoT?

Each IoT device must have a unique and verifiable identity to authenticate itself when connecting to a gateway or central server. With a unique ID, IT administrators can monitor each device's activities, communicate securely with it, and prevent it from executing malicious processes.

The unique ID also allows administrators to quickly revoke access privileges for any device exhibiting suspicious behavior, protecting the network from potential security breaches.

For example, digital signatures or hashes are used to check the firmware's and software's integrity during the boot process. This verifies the code hasn't been changed or replaced with malware.

Once the device confirms the software's authenticity, it can securely connect to the network and other devices. This process enables only trusted devices to connect to the network and communicate, thereby preventing security breaches and data theft.