Cybersecurity doesn’t start at the firewall—it starts with the cables, ports...

https://wool-wiki.win/index.php/Why_Does_My_VPN_Handshake_Fail_Randomly_at_Work%3F

Cybersecurity doesn’t start at the firewall—it starts with the cables, ports and switches carrying your traffic. This article shows how a bad patch lead can stop VPN handshakes, and why well-managed infrastructure makes attacks harder to hide.