Security models you can actually defend.
Tessera Design turns a description of your system into a complete, traceable security model — threats, weaknesses, controls, risks and requirements — every element grounded in your architecture and validated by a human before it ships.
Every finding cites the evidence it came from — follow any element to what it connects to, and to the line in your system that produced it.
Evidence from your architecture — not a policy questionnaire.
Compliance tools start from a control framework and ask you to attest. Tessera starts from your system and derives the security work from how it's actually built.
- – Begins with a framework checklist; you map yourself to it.
- – Attestation-led — "do you have a policy for X?"
- – Thin on the actual threats to your design.
- – The reasoning lives in a spreadsheet, not the model.
- ✓ Begins with your system; derives threats, weaknesses and controls from it.
- ✓ Every element traces to the evidence that produced it.
- ✓ Determinism you can re-run — a closed frame, not a fresh guess each time.
- ✓ A human validates the security-critical calls before anything ships.
Describe the system. Get a defensible model. In an afternoon.
Describe
Paste a description or hand over the documents you already have — architecture notes, diagrams, an RFC. Tessera reads them.
Generate
It builds one connected model — threats, weaknesses, risks, requirements and controls — each derived from your system, none floating.
Challenge & validate
Dispute any element; it defends with evidence or concedes and corrects. Security-critical calls can't pass until a human signs them off.
Export
A branded, client-ready deliverable with the traceability intact — the reasoning behind every control followed end to end.
A security product has to hold itself to the standard it sells.
The proof points that matter to a security-conscious buyer — real today, plainly stated.
Zero-data-retention path to the model provider; content is never used to train.
We keep the minimum identifying data needed to run the work and bill it — no more.
Cross-workspace access returns nothing — isolation proven, not asserted.
Security-critical elements need a human sign-off; the AI proposes, you decide.
Map to ISO 27001, NIST CSF, your own control packs — not a fixed checklist.
No fabricated certifications, no borrowed logos. Where we're not yet certified, we say so. Read the trust overview →
One connected model, more products over time.
Tessera Design
Generate a complete, traceable security design from a system description — validated by you, exported client-ready.
Tessera Context
Vulnerability management with the context most tools miss — which weaknesses actually matter for your systems, and why.
Tessera Intel
Threat intelligence tied to your architecture, so a new advisory lands as "here's what it touches," not noise.
See Tessera on your own system.
We onboard pilots by invitation. Tell us who you are and what you'd point it at, and we'll set you up.