QNSI

QNSI platform

What is Tenant isolation?

QNSI source defines per-tenant keys, audit chains, policy, edge authorization, service identity, KMS scoping, and vault scoping. Complete isolation across synchronous, asynchronous, storage, cache, export, log, and support paths requires deployment-specific negative testing.

Decision context

Why Tenant isolation matters

Tenant isolation limits one customer's identities, keys, data, policies and evidence from affecting another. It is a layered property spanning authentication, authorization, storage, caches, queues, cryptographic context, observability and operator access rather than a single tenant-id column.

How to evaluate Tenant isolation

Run negative cross-tenant tests at every service and asynchronous boundary using real authorization paths. Verify key and nonce separation, cache keys, object paths, database policies, exports, logs and support tooling. Treat missing observations as unverified, never as evidence that cross-tenant access is impossible.

QNSI platform

QNSI platform evidence boundary

QNSI platform terms describe intended control or evidence boundaries. Their presence in documentation is not proof that a customer deployment executed them. Verify the selected service path, tenant policy, custody provider, production record, and independent evidence before relying on the term in an assurance decision.

FAQ

Common questions

What is Tenant isolation?

QNSI source defines per-tenant keys, audit chains, policy, edge authorization, service identity, KMS scoping, and vault scoping. Complete isolation across synchronous, asynchronous, storage, cache, export, log, and support paths requires deployment-specific negative testing.

Why does Tenant isolation matter?

Tenant isolation limits one customer's identities, keys, data, policies and evidence from affecting another. It is a layered property spanning authentication, authorization, storage, caches, queues, cryptographic context, observability and operator access rather than a single tenant-id column.

How should Tenant isolation be evaluated?

Run negative cross-tenant tests at every service and asynchronous boundary using real authorization paths. Verify key and nonce separation, cache keys, object paths, database policies, exports, logs and support tooling. Treat missing observations as unverified, never as evidence that cross-tenant access is impossible.

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