Do IoT devices such as cameras and printers need monitoring?
Yes. Cameras, printers, door controllers, screens and sensors are often old, rarely updated and impossible to fit with an endpoint agent, which makes them a common way in and a good hiding place for an attacker who is already inside. Start with the free steps: list them, change default passwords, update the firmware, switch off cloud features you do not use, and put them on their own network segment with rules that allow only what they need. Monitoring then tells you whether those rules hold. A sensor on that segment sees their traffic without touching the devices; NetSenX flags scanning, beaconing and unusual outbound volume from them, on every plan, and the network map lists the devices it sees talking. A device that stays silent, or sits on a segment you do not mirror, stays out of view.