Cybersecurity starts with the cables, cabinets and switches—not just software....

https://web-wiki.win/index.php/Why_Deferred_Infrastructure_Upgrades_Cost_More_Than_Doing_It_Once

Cybersecurity starts with the cables, cabinets and switches—not just software. A damaged patch lead can stop VPN handshakes, while default switch passwords may help an intruder move between systems. This article shows why the physical network matters.