Selling into the UK defence sector means meeting a rising bar for cyber security – and proving you meet it. MOD supplier cyber security is no longer a box-ticking exercise: whether you supply the Ministry of Defence directly or sit further down the supply chain through a prime contractor, Base3 helps you meet the requirements and stay contract-ready.

Why MOD supplier cyber security is changing

The MOD is tightening cyber requirements across its entire supply chain, not just its prime contractors. The introduction of the Cyber Security Model version 4 and the Defence Cyber Certification (DCC) scheme means suppliers are now expected to hold independently assessed, organisation-level assurance rather than filling in a fresh self-assessment for every contract.

For most suppliers, MOD supplier cyber security now centres on DCC Level 0, which the MOD has asked all industry partners to achieve by 31 December 2026. But it is broader than any single certificate – it is about being able to demonstrate, credibly and on demand, that your organisation protects the information and systems it is trusted with.

Credentials that matter in defence

Base3 is not a generalist claiming defence experience after the fact. Our credentials are the ones the sector recognises:

• DCC Level 0 Certification Body – appointed and listed on IASME’s register to assess and certify defence suppliers at Defence Cyber Certification Level 0. Base3 also holds DCC Level 0 itself.
• Cyber Essentials and Cyber Essentials Plus Certification Body – recognised by IASME and the NCSC.
• NCSC Assured Service Provider (Cyber Advisor scheme) – verified by the UK’s national cyber security authority to help organisations get the fundamentals right.
• JOSCAR registered supplier – listed on the supplier accreditation register used across the defence and aerospace supply chain.
• ISO 9001 certified – assurance that our own delivery is consistent and quality-managed.

These are the things a prime contractor or MOD buyer looks for when deciding whether a supplier can be trusted with sensitive work.

How Base3 supports MOD suppliers

We work with defence suppliers across the full path to compliance:

• Cyber Essentials and Cyber Essentials Plus – the foundation of every DCC level, and often the fastest win. As a certification body for both, we can assess and certify you directly.
• Defence Cyber Certification – as a DCC Level 0 Certification Body, we assess and issue DCC Level 0 ourselves, and prepare you for the higher levels where your contracts require them.
• Ongoing managed IT and security – keeping the controls you certify against actually working, day to day, so annual check-ins and re-certification are straightforward rather than a scramble.

Start with a conversation

The right first step depends on where you are. If you already hold Cyber Essentials, DCC Level 0 certification is the natural next move – and we can carry that out for you. If you do not, that is where we begin. Either way, the sooner you start, the more comfortably you clear the December 2026 deadline – and the stronger your position when defence work comes up for tender.

Talk to Base3 about your defence supply chain cyber security requirements.