Good security starts with the cables, switches and access controls people...

https://www.jelly-bookmarks.win/cyber-defence-starts-at-the-rack-a-bad-lead-can-break-vpn-calls-weak-switch

Good security starts with the cables, switches and access controls people rarely notice. This article explains why physical network basics matter—and how a forgotten default switch password can let an intruder move deeper into your network.