Cybersecurity can unravel before a firewall ever gets involved. A VPN handshake...

https://www.logo-bookmarks.win/cyber-defence-starts-at-the-rack-a-bad-patch-lead-can-break-vpn-handshakes

Cybersecurity can unravel before a firewall ever gets involved. A VPN handshake that keeps failing might come down to a damaged patch lead, not a complex attack