Good cybersecurity starts with the cables, ports and switches people rarely...

https://star-wiki.win/index.php/Does_the_Essential_Eight_Require_Network_Segmentation%3F

Good cybersecurity starts with the cables, ports and switches people rarely notice. This article shows how a neglected network cupboard can undo careful security—for example, default switch credentials can let an intruder move from one system to another.