Cybersecurity starts with the cables, ports and switches people rarely notice....

https://holdenssplendiddigests.zenbloomer.com/posts/what-to-segment-first-servers-users-iot-or-guest-wi-fi

Cybersecurity starts with the cables, ports and switches people rarely notice. A switch left with its default password can give an intruder a path from a meeting-room device into business systems. The article shows why the physical layer matters.