Zero trust may sound like the latest buzzword, but the idea has been around for years. In the old days, cybersecurity was like building a castle: a strong wall (the firewall) kept outsiders away, and once you were inside, you were trusted.

The problem? Today’s world isn’t a castle.

• Employees can work from anywhere
• Data lives in the cloud

Attackers often slip past the walls unnoticed.

That’s where zero trust comes in.

Instead of assuming that anyone inside the network is safe, zero trust requires everyone and everything — users, devices, and apps — to prove who they are, every time.

It’s about continuous verification, least-privilege access, and shrinking the places where attackers can hide.

Zero Trust Simplified

And while all of this may sound highly technical, I recently realized it can be explained in a much simpler way — through the daily adventure of raising a puppy.

When you first bring a puppy home, you don’t give her free rein of every room. You use crates, gates, and closed doors to keep her in approved spaces while she learns the rules.

That’s exactly what zero trust does in a network: restrict lateral movement.

Users and devices don’t get blanket access — they start small, and access expands only as trust is earned.

When it’s time for a walk, the puppy doesn’t just wear a collar. She has a harness and a leash. That’s two layers of protection, just like multifactor authentication. The leash alone reduces risk, but adding the harness means I can be confident she won’t break out and bolt after a squirrel.

MFA works the same way — reducing the chance of unauthorized access, even if one layer fails.

Her name tag with contact info isn’t just cute — it’s her ID. If she ever gets lost, it proves who she is and who’s responsible for her. In zero trust, identity is the cornerstone. Every user, device, and application must be clearly identified and verified before being granted access. No exceptions.

Puppies believe they’re entitled to certain privileges — like jumping on the couch or sampling from the dinner table. But the household access policy is clear: deny all by default.

Only after training, good behavior, and explicit approval can she earn new privileges. Zero trust works the same way:

• no open access
• no assumptions
• no default yes

Keep Alert for Unusual Behavior

Puppy owners know: when things go quiet, it’s time to check. Silence often means she’s chewing on something she shouldn’t — and yes, the Wi-Fi router has been a target.

Zero trust relies on that same principle. Continuous monitoring detects when normal behavior shifts — before small problems become big breaches.

Despite best efforts, sometimes accidents happen… usually on the carpet. The key is to respond quickly, clean up, and adjust routines so it’s less likely to happen again.

In cybersecurity, even with zero trust, incidents occur. A strong incident response plan ensures fast containment, remediation, and lessons learned.

Zero trust isn’t about paranoia — it’s about protecting what matters most.

A puppy doesn’t get full run of the house on day one, and your users and devices shouldn’t either. Privileges are earned, monitored, and adjusted over time.

For organizations, that means:

• fewer breaches
• less costly downtime
• stronger compliance with frameworks like NIST and CMMC.

For puppy owners, it means fewer chewed shoes.

At the end of the day, zero trust helps you grow safer, one step (or paw-print) at a time.

👉 If your organization is ready to stop chasing squirrels and start building real resilience, Luminary A.C.E. can help you put zero trust into practice.