Cybersecurity can fall apart before a firewall gets involved. A poor patch lead...

https://www.oscarbookmarks.win/cybersecurity-starts-with-the-network-itself-a-bad-patch-lead-can-break-vpn

Cybersecurity can fall apart before a firewall gets involved. A poor patch lead can interrupt VPN handshakes, while a switch left with its default password can give an attacker a path across the network