Security architecture & Secure by Design

Security Architecture & Secure by Design

Build security in before a line of code ships. We design security into your systems, services and cloud from the outset - threat-led, proportionate, and aligned to the UK Government's Secure by Design approach. For government, the suppliers who serve it, and private-sector organisations that want to get it right first time.

The basics

What is Secure by Design?

Secure by Design means building security into a system from the very start - at the business case and design stage - rather than bolting it on after the fact.

It treats security as a continuous thread through the whole project lifecycle, from concept through development, deployment and maintenance, so risks are designed out before they're built in.

It began as a UK Government mandate for public-sector delivery teams, but the principle applies to any organisation that builds or buys technology: the earlier security is considered, the cheaper, faster and stronger it is to achieve.

The audience

Who it's for

Government & public sector

The UK Government's Secure by Design mandate requires delivery teams to embed security through the project lifecycle and evidence it. We help public-sector teams turn the principles into practice - and produce the assurance artefacts that demonstrate compliance.

Suppliers to the public sector

If you sell to government or defence, you're increasingly expected to demonstrate Secure by Design alignment as part of contracts and supply-chain assurance. We help suppliers meet that bar - so security strengthens your bid rather than blocking it.

Private-sector & regulated organisations

Secure by Design isn't only for government. For any organisation building software, platforms or infrastructure - especially in regulated sectors like finance and healthcare - designing security in early means fewer breaches, lower remediation cost and stronger customer trust.

Our services

What we do

  • Threat modelling

    Identifying how your system could be attacked, early enough to design the risks out.

  • Security architecture design

    Designing systems and services with proportionate, well-justified controls.

  • Architecture review

    Assessing an existing or proposed design and articulating the risks in it.

  • Control selection & justification

    Choosing the right controls for the risk, not gold-plating.

  • Secure by Design assurance

    The evidence and artefacts that show security was designed in, for auditors, authorities and customers.

The approach

How we work

We work threat-led and proportionate - security shaped around real risk, not a generic checklist. We embed with your delivery team rather than handing over a document and leaving, so the design decisions stick.

And because we also test, assess and engineer security - penetration testing, our cloud security assessment and secure cloud engineering - our architecture advice is grounded in how systems actually get attacked and built, not theory.

The difference

Why Layer 7

Genuine defence & government experience

We deliver security to defence, public-sector and regulated clients - including MOD-accredited cloud work - through G-Cloud 14, DOS 7 and CCS frameworks.

Design-stage is the cheapest place to fix security

A flaw caught in design costs a fraction of one found in production - or after a breach. Engaging us early is the highest-leverage security spend you can make.

We design, test, assess and build

Security architecture sits alongside our penetration testing, cloud assessment and secure engineering - so our designs are informed by how systems are really attacked and delivered.

Vendor-neutral and proportionate

We design around your risk, not a product we're trying to sell.

Embedded with your delivery teams

We work inside your design and delivery process, not alongside it - so security shapes decisions as they're made, not bolted on in a review afterwards.

Certified and sustainable

ISO 27001, ISO 9001 and ISO 14001 certified, with a published Carbon Reduction Plan. We're also an IASME-licensed Cyber Essentials Plus Certification Body.

Engagement

How to engage us

Security architecture and Secure by Design work is scoped to your project - from a focused architecture review to embedded support across a programme. The earlier you bring us in, the more we can design out. Tell us where your project is and we'll propose the right level of involvement and a fixed scope.

Discuss your project
Regional focus

Security architecture across the North East and UK

We work with organisations throughout the North East and across the UK - remotely and on site - embedding with public-sector teams, their suppliers, and private-sector delivery teams alike.

Questions

Secure by Design FAQs

What is Secure by Design?

Building security into a system from the start - at business case and design stage - and maintaining it through the whole lifecycle, rather than adding it afterwards.

Is Secure by Design only for government?

No. It's a UK Government mandate for public-sector delivery teams, but the principle applies to any organisation that builds or buys technology - and suppliers to government are increasingly expected to demonstrate it.

We sell to the public sector - do we need Secure by Design?

Increasingly, yes. Public-sector buyers expect suppliers to show their products and services are designed securely, as part of contract and supply-chain assurance. We help you evidence it.

What's the difference between security architecture and a security assessment?

Architecture is about designing security in up front; an assessment reviews what already exists. We do both - design first, then assess and test what's built.

When should we involve a security architect?

As early as possible - ideally at the design or business-case stage, where security is cheapest to build in.

Build security in from the start

Whether you're a government team meeting the Secure by Design mandate, a supplier proving it, or a private-sector organisation that wants to get it right first time - tell us about your project and we'll design security in.