Cybersecurity can fall apart before traffic reaches a firewall. This article...

https://www.cyberdaily.au/strategy/14271-why-physical-network-infrastructure-is-the-overlooked-foundation-of-your-cybersecurity-strategy

Cybersecurity can fall apart before traffic reaches a firewall. This article looks at how cabling, switch setup and access controls shape your defences—and how default switch credentials can let an intruder move between systems.