Deny by default. Trust identity, not network position. And do it this year — not after a three-year re-architecture program.
Programs that require replacing every app with a proxy first. They die in phase two of nine.
One agent for access, one for posture, one for device management — endpoints buckling under the payload.
Rules so complex that nobody can predict what's allowed. That's not zero trust; it's zero visibility.
Apps don't change. Zero trust enforcement happens at the network layer, so legacy internal tools get the same treatment as new ones.
Access decisions use your IdP's users, groups, and device posture signals. No IP addresses anywhere in the policy.
ACLs read like sentences — "engineers may reach staging-web on 443 during business hours" — versioned in Git.
Start with one team and one environment. Each migration step ships value and shrinks the attack surface immediately.
| Tenent | How OpenVLAN implements it |
|---|---|
| All resources accessed per-session | Every connection is individually authorized against current identity and posture. |
| Access determined dynamically | ACLs re-evaluate on group changes, device posture, and time-based rules. |
| Least privilege, always | Default deny; grants are explicit, narrow, and reviewable in code. |
| Continuous monitoring | Flow logs and session recordings stream to your SIEM in real time. |