01 — The problem
What has to stop going wrong.
Your data sits next to someone else's, and isolation is a property of your code rather than of your infrastructure.
02 — What we build
The system behind the surface.
Isolation in independent layers, defended by a test suite whose job is to breach it. Tamper-evident audit chains, field-level encryption, and refusals that do not confirm what they are refusing.
01
Bound it
Define the failure modes, permissions and consistency rules before the interface hides them.
02
Build it
Ship production code in your repository, in phases with a written exit state.
03
Try to break it
Test the paths that carry money, identity, isolation and irreversible decisions.
03 — Decision material
Know whether it fits before a call.
A strong fit
- Multi-tenant products carrying customer data
- Systems holding sensitive operational or identity records
- Teams that need executable security tests, not a checklist
What leaves with you
- Threat, role and data-flow model
- Layered authorisation and tenant isolation
- Audit and encryption controls
- Adversarial tests and a remediation record
04 — Evidence
A claim should lead somewhere.
Each business's data separated by three independent mechanisms, tested by a suite built to break them.
Shown in Nexora AI — Retail and trading