SECURITY ARCHITECTURE

Secure production is not a final step. It is part of how production runs.

Security is not added after ZHC builds something. It is enforced while ZHC builds it — policy governing access to models, tools and data, restricted actions blocked before they run.

Access
Policy
Monitoring
Change
Posture

The gates control the risk that matters

Two gates. Continuous security between them.

Most enterprise software delivery puts humans inside every stage. ZHC puts your judgement at two points instead: what gets approved to start, and what gets approved to ship.

You control the specification. ZHC controls the production work. You control the release.

Gate one

Approve the specification.

What needs to be built, what it connects to, what it must never do, and what constraints govern the work — all set before anything runs.

Gate two

Approve the merge.

Your team reviews the production outcome against the specification and the required conditions. Nothing moves forward without that review.

Between the gates, security is not suspended and picked back up. It runs continuously.

What’s enforced, continuously

Governance runs the whole way through, not just at the ends.

Access & identity

Enforced

Identity and access controls apply to every actor in the system, human or agent.

Model, tool & data access

Governed

Policy governs access before any restricted action executes — not after.

Agent activity

Monitored

Execution is observed while it’s underway, not reconstructed after the fact.

Change control

Approval required

Nothing merges without a human decision at the gate.

Security posture

Continuous

Assessed continuously across the work, not verified once and assumed.

This is MADAM’s governance operating across every stage between the gates — not a checkpoint bolted on at the end.

Full governance detail →

Your environment, your boundaries

Production stays accountable to your organisation, not ours.

ZHC does not ask you to abandon the enterprise architecture around it. Production systems have to remain accountable to the organisation operating them, inside infrastructure and access boundaries you define — not boundaries ZHC assumes on your behalf.

The exact architecture depends on the deployment model selected for your environment.

Deployment models and control posture →

Your infrastructure

ZHC production system

What this means for your review

This is the public layer. There’s a deeper one for evaluators.

This page describes the security architecture at the level appropriate for public review. A deeper layer is available directly to evaluators, before any commercial conversation.

Public — this page
  • The two-gate control model
  • What MADAM enforces, continuously
  • Environment & deployment boundaries
Reserved for evaluators
  • Deployment responsibility boundaries
  • Model, tool & agent-control summary
  • Current security contact & review process