The Internet of Things (IoT) is a rapidly growing area of technology that includes everything from smart homes and wearables to industrial automation.

However, the IoT also brings with it new security challenges, as IoT devices are often vulnerable to attack.

Blockchain can help to secure the IoT by providing a way to track and monitor the devices in the network, as well as to detect and respond to attacks.

Additionally, blockchain can be used to create a decentralized identity system for IoT devices, which would make it harder for hackers to gain access to the network.

This could be especially useful for industries such as healthcare, where protecting patient data is of necessity.