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Threat Modelling · Oxford

Threat Modelling in Oxford

Threat modelling for Oxford organisations, where the exercise is cheapest before anything is built and almost nobody does it then. The output is a set of design decisions rather than a diagram — and once the system exists, those decisions have already been made implicitly and changing them costs considerably more.

Why this comes up

The problem

The architecture is settled and the security review is now proposing changes nobody can afford.

What you get

What we deliver

  • The exercise run at design stage where possible, since that is where it pays
  • Data flows mapped so trust boundaries are visible rather than assumed
  • Threats identified against those boundaries using a structured approach
  • Each threat resolved into a decision — mitigate, accept, transfer or avoid
  • Accepted risks recorded with an owner and a reason
  • The model kept current, because the system will change after it is written

Want this scoped for your business in Oxford?

Thirty minutes, no charge, no sales script. You leave with a written summary of what threat modelling would actually involve — whether or not you use us.

Book a 30-minute call

Working in Oxford

South East

Oxford's economy runs on research and life sciences, and a lot of the work here starts with a research group or spin-out that needs a prototype turned into something other people can safely use.

Research groups and spin-outs needing a prototype turned into a supportable product make up most of the local demand.

Sectors we work with in Oxford

  • Research & Higher Education
  • Life Sciences
  • Publishing
  • Technology
  • Tourism

What we work with

Technologies and platforms

  • STRIDE
  • Data flow diagrams
  • OWASP
  • Threat modelling tools

Who we work with

Industries we serve

  • Financial services
  • Healthcare
  • SaaS businesses
  • Public sector
  • Critical infrastructure

Why us

Why Oxford businesses choose Asionis

  • Projects typically launched within 4–8 weeks
  • No long-term contracts required
  • All team members UK-based
  • Dedicated account manager and development team
  • Transparent reporting with monthly performance metrics
  • Scalable from startup to enterprise

How we work

  1. Step 1

    Free consultation

    A 30-minute call to understand the problem. You keep the written summary either way.

  2. Step 2

    Proposal

    Scope, timeline and a fixed price, in writing, before anything starts.

  3. Step 3

    Build

    Short cycles with regular check-ins, so you see progress rather than hear about it.

  4. Step 4

    Launch and support

    We handle the go-live and stay available afterwards.

Threat Modelling in Oxford — common questions

Why does timing matter so much?
Because design decisions harden. Choosing where a trust boundary sits costs nothing on a whiteboard and a great deal once services depend on it, so modelling after the build frequently produces findings the team cannot act on within any reasonable budget.
Is the diagram the deliverable?
No — the decisions are. A data flow diagram is a means of finding threats, and the output that matters is the list of what you decided to do about each one, including the ones you deliberately accepted and why.
Do accepted risks need documenting?
Particularly those. Accepting a risk is a legitimate decision, and recording who accepted it and on what basis is what distinguishes a considered position from an oversight — and it is the record you will want if the risk later materialises.
How often should it be revisited?
When the architecture changes materially. A model describing a system that has since gained integrations, changed its data flows or moved to a different platform is describing something else, so revisiting it at meaningful change points keeps it useful.
Do you work with businesses across Oxfordshire?
Yes. We are based in Leicester, United Kingdom and work with clients throughout South East, including Oxford and the surrounding Oxfordshire area. Most collaboration happens remotely, and we travel for kick-offs and key milestones.
What kind of Oxford businesses do you usually work with?
Research groups and spin-outs needing a prototype turned into a supportable product make up most of the local demand. Beyond that we work across Research & Higher Education, Life Sciences, Publishing, Technology and Tourism.
Do you cover the areas around Oxford?
Yes — we work throughout South East, including Reading, Milton Keynes, Cambridge, London. Oxford is an urban area of roughly 170,000+, and we take on work across the wider Oxfordshire region rather than the city boundary alone.

Talk to us about Threat Modelling in Oxford

A 30-minute call with someone who would actually work on it. No sales script, no obligation.

  • Projects typically launched within 4–8 weeks
  • No long-term contracts required
  • All team members UK-based
  • Dedicated account manager and development team
  • Transparent reporting with monthly performance metrics
  • Scalable from startup to enterprise

Or reach us directly

07707 771599admin@asionis.com

Leicester, United Kingdom