Cybersecurity starts before the firewall, with the cables, ports and switches...

https://wiki-view.win/index.php/Why_a_%E2%80%9CBudget%E2%80%9D_Patch_Lead_Can_Cost_More_Than_It_Saves

Cybersecurity starts before the firewall, with the cables, ports and switches carrying every connection. A bad patch lead can make VPN handshakes fail, while default switch credentials can give an intruder a path across the office