Security work you can follow, line by line.
Most security tooling asks you to attest. You answer a questionnaire, it produces a score, and no one can quite say where the score came from. Tessera starts from the other end — from your actual architecture — and derives the security work from how the system is really built. Then a human signs it off before it ships.
The senior work is the bottleneck.
A good threat model, a defensible risk assessment, a control set that actually maps to requirements — that's weeks of a senior consultant's time, and there aren't enough of them. Tessera does the heavy lift in a session and leaves the judgement where it belongs: with you.
Evidence from architecture
Findings are grounded in the system you described, and each one cites what it came from. If you can't trace it, we don't ship it.
Human in the loop, by design
Nothing is final until a person has reviewed and challenged it. The AI does the work; the human owns the sign-off.
Principles, not posture.
Evidence over attestation
Show the reasoning, cite the source, or don't claim it.
Determinism you can re-run
The same system gives the same model; a change shows exactly what moved.
Minimise what we hold
Keep the least data needed to do the work, and never train on yours.
- ✓ A way to produce senior security design work in a session, branded as your own.
- ✓ UK-built, evidence-led, invite-only while we onboard carefully.
- ✓ A tool that keeps the human in charge of the judgement.
- › A compliance questionnaire that scores you from answers.
- › A black box you have to take on faith.
- › A replacement for your sign-off — it's the work under it.
The details.
See it on something you actually own.
We onboard pilots by invitation. Tell us who you are and what you'd point it at.