Encrypted traffic — what your firewall is not seeing

Originally posted on LinkedIn — Leader Series · 2026-06-04

Over 90% of internet traffic is encrypted.

Including the malware coming for your network.

If your firewall isn’t decrypting and inspecting traffic, you’re flying blind on the majority of what crosses your network. That’s not a security program — that’s hope.

Let me be direct with you about what most leaders miss:

❌ “We have a firewall” doesn’t mean you have visibility
❌ “We block bad sites” doesn’t help if the threat is inside HTTPS
❌ “Our endpoint security catches it” is reactive, not preventive
❌ “Decryption is too complex” is a 2015 excuse, not a 2026 reality

What decryption actually changes:

✅ You see what applications users are running (not just ports)
✅ Your DLP can actually inspect data leaving your network
✅ Threat prevention works on the 90%, not the 10%
✅ Compliance becomes provable, not assumed

The valid concerns — and the answer to each:

→ Privacy?
Exclude banking, healthcare, government categories. Modern firewalls do this in one click.

→ Performance?
Plan capacity. Modern Palo Alto hardware handles this without breaking a sweat.

→ User pushback?
Explain it once. Document it. Move on. Every modern enterprise does this.

→ Certificate management?
It’s a project, not a blocker. Your team can handle it.

Decryption isn’t optional anymore. It’s the difference between security and security theater.

Is your firewall actually inspecting your encrypted traffic — or just letting it through?