Let us first start by defining security in an Internet of Things (IoT) context, as it can be understood in very different ways, and the term is often used to describe only a single aspect of the question. We can categorize the different meanings of the word into three different groups: lifecycle security, communication security, device security.

Lifecycle security covers the ability to securely and remotely manage a device at the different stages of its life, from configuration, monitoring, and upgrade until its decommissioning or revocation. This is essential to guarantee that devices are actually used in an expected way, especially when managing large deployments.

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