Defence Cyber Certification

  • Independent certification for UK defence suppliers, aligned to Defence Standard 05-138 Issue 4.
  • Readiness, gap analysis and hands-on implementation, delivered with our certification partner network.
  • Levels 0 to 3, scoped to your organisation and the cyber risk profile your contract carries.

Defence Cyber Certification is how the Ministry of Defence now assures cyber security across its supply chain. We prepare organisations for it and implement the controls it requires, working alongside an assured certification body who carries out the assessment.

Why Defence Cyber Certification exists

Until recently, MOD supplier cyber assurance rested on the Supplier Assurance Questionnaire, which is a self-declaration. Too many suppliers completed it without auditable evidence behind their answers, and the shortfall only surfaced after an incident.

DCC applies the Cyber Essentials model to that problem. Cyber Essentials is self-assessed; Cyber Essentials Plus adds an independent audit of what you have claimed. DCC works on the same principle, except that every level, including the entry level, is independently assessed. In short, show us what you say you do.

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Talk to us about your Cyber Risk Profile
The MOD has asked defence industry partners to reach Level 0 by 31st December 2026. Tell us about your contract and we will explain what your level involves.

The four levels

Each level maps to a Cyber Risk Profile, which the MOD assigns to your contract. You do not choose your level. Your contract does.

Cyber Essentials certification is a prerequisite at every level, and Cyber Essentials Plus is required from Level 2. Certificates last three years, with annual attestation and annual Cyber Essentials renewal throughout.

Baseline hygiene, independently assessed. Suited to suppliers of goods and services with minimal security impact.

Covers a substantial share of the ground addressed by ISO 27001. The natural level for professional services firms and most established suppliers.

A significant step up, with formal assurance programmes, data loss prevention and third-party oversight. Cyber Essentials Plus is required from this level.

For suppliers of deeply sensitive capability, including nuclear and weapons programmes.

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Scope is the whole organisation

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This is the point most suppliers miss. Defence Standard 05-138 Issue 4 moved away from assessing only the systems that handle MOD information. The scope is now your overarching corporate environment: every system, process and function required for your business to operate, whether or not it touches defence work.

Under-scoping is an automatic failure, even where every control has been met. Getting the scoping statement right is the first and most critical step, and it carries forward unchanged to every subsequent level.

comprehensive protection
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Why choose Data Defence

why datadefence

We implement controls for a living. We run managed detection, vulnerability management, backup, recovery and firewall services for organisations across regulated sectors, which means we arrive already knowing how these controls behave in a working estate rather than how they read in a standard.

Most certification support stops at documentation. Ours does not. Where a gap analysis finds a control missing, we can build it, operate it and evidence it.

We work with an assured certification partner who carries out the formal assessment. Under the scheme rules, an organisation that supports implementation cannot also be the assessor. We think that is the right way round. It means our work during implementation is directed entirely at getting you ready, with no interest in the assessment outcome beyond your success.

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How we deliver it

Five steps, from defining your scope to formal assessment. Where gaps need closing, we can use our own managed vulnerability service, managed detection and response and technical recovery services.

Our approach
  • Scoping. We define and document the assessment boundary, and produce the scoping statement the scheme requires. Completed once and reusable at every level.
  • Readiness review. We work through the assessment submission record with you to establish roughly where you stand before you commit further.
  • Gap analysis. A structured assessment against your target level, identifying shortfalls and the evidence you will need to produce.
  • Implementation. We close the gaps, using our own managed services where that is the fastest route, and build the evidence trail as we go.
  • Assessment. Our certification partner conducts the formal assessment. We prepare you for it and support you through it.
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Evidence, not declarations

A certificate is only worth what stands behind it. Levels 1 and above are assessed in two phases: a theoretical phase where you explain and evidence each control, and a practical phase where an assessor verifies that the controls actually operate, using sampling. A control claimed on paper does not survive that.

Our approach is built accordingly. We record what can genuinely be produced if an assessor asks, and we are straight with clients where a control exists in principle but cannot yet be demonstrated. That is a less comfortable conversation at the start and a considerably better position at assessment.

Beyond defence

DCC is worth considering even where MOD work is not the immediate driver. Level 1 covers a substantial share of the same ground as ISO 27001, so it serves as a staged and cost-effective route towards that standard rather than a standing start. It also makes the third party security questionnaires that clients send you considerably easier to answer, because the evidence is already assembled and independently tested.

Your questions, answered.

Not at present. The MOD has asked defence industry partners to reach Level 0 by 31st December 2026, and industry expectation is that it becomes a contractual requirement during 2027. Suppliers who move early are in a considerably stronger position on tenders.

Your contract decides. The MOD issues a Risk Assessment Reference carrying a Cyber Risk Profile from 0 to 3, usually at tender stage. If you do not have one yet, ask the buying authority. Level 1 is the natural level for most professional services firms.

Yes. Cyber Essentials is a prerequisite at every level, and Cyber Essentials Plus is required from Level 2. If you do not hold it, we can take you through that first.

Level 0 is typically achievable within a couple of months for an organisation with reasonable foundations. Higher levels depend entirely on what the gap analysis finds. We will give you a realistic timeline once scoping is complete, not before.

No. We deliver the readiness, gap analysis and implementation work. An assured certification body carries out the formal assessment and issues the certificate. Scheme rules prevent the same organisation from doing both, which keeps our implementation work independent of the assessment.

Talk to us about your Cyber Risk Profile

Tell us about your contract and where you stand today. We will explain what your level involves and how we would get you ready for assessment.

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