UK public sector cybersecurity compliance

Your suppliers passed at contract award. Would they pass today?

Check what your public body is assessed against for supplier security, from CAF and GovAssure to UK GDPR and PPN 014. Then see how ready you are and what to fix first.

Free · About two minutes · Nothing saved. Independent guidance from Risk Ledger, not an official assessment or legal advice.

What you're assessed against
The frameworks, policy and law that apply to your organisation, each with its official source.
How ready you are
Eight supplier assurance areas rated strong, partial or gap, each mapped to CAF.
What to fix first
Your top three priorities, the evidence to organise and a PDF summary to take to leadership.
supplier assurance check
Free self-check for UK public bodies

Supplier assurance check

Answer 12 quick questions about your organisation and your critical suppliers. You'll see which frameworks apply to you, where you stand, and what to fix first.

What applies to you

CAF, GovAssure, sector routes and the rules on suppliers.

Where you stand

Your readiness across the eight areas assessors look at.

What to fix first

A ranked set of next steps, based on your answers.

About 2 minutesNothing is saved or sent

Independent guidance from Risk Ledger. Not an official assessment, a CAF score or legal advice. Confirm scope with your security, legal and data protection teams.

Based on official NCSC, Cabinet Office, MHCLG, devolved government, ICO and Parliament sources, checked October 2026. Guidance changes, so always check the linked source.

At a glance

Where supplier security sits in UK public sector cybersecurity compliance

Most supplier security expectations run through one framework, the NCSC's CAF. The rest depends on who you are, where you're governed and what your suppliers do.

Assessment framework
NCSC Cyber Assessment Framework (CAF)
For: most UK public bodies, as the common yardstick.

Suppliers: principle A4 covers supply chain and secure software.
Policy and assurance process
Cyber Security Standard and GovAssure
For: central government departments, and arm's-length bodies as their sponsor decides.

Suppliers: critical systems are assessed against CAF, including A4.
Assurance process
CAF for local government
For: councils in England.

Suppliers: organisational and critical-system assessment, with supplier outcomes under A4.
Assessment framework
Scottish Public Sector Cyber Resilience Framework
For: Scottish public bodies.

Suppliers: supply chain controls within a risk-based, proportionate framework.
Law
UK GDPR processor rules
For: any public body whose suppliers process personal data on its behalf.

Suppliers: specific contract terms and sufficient guarantees from processors.
Procurement policy
PPN 014 and Cyber Essentials
For: central government and NHS bodies. Others can adopt its approach.

Suppliers: proportionate cyber controls in contracts, not Cyber Essentials everywhere.
Law and forthcoming change

NIS Regulations and the Cyber Security and Resilience Bill

NIS covers specified essential and digital services, not public bodies as such. The Bill would update and widen NIS, including for some managed service providers. It's still before Parliament.

CAF principle A4

Preparing for a CAF assessment: the supplier part

CAF is outcome-based. It describes what good looks like rather than prescribing controls, so you decide how to meet each outcome and show the evidence.

A4.a
Supply chain
Understand and manage the security risks suppliers bring to the systems behind your essential functions. That means knowing your suppliers, setting requirements in contracts and taking a proactive approach to contract management.
A4.b
Secure software development and support
Use secure, supported software, whether you build it or buy it. For bought software, check it's supported, kept updated and has a clear route for reporting vulnerabilities.
Evidence that tends to support A4

A register linking suppliers to the services they support

Tiering criteria, and the tier for each critical supplier

Standard security clauses, and which contracts include them

Review records and the remediation decisions that followed

Supplier incident contacts and notification terms

Examples, not a checklist. Your assessor decides what's sufficient for your profile.
CAF doesn't prescribe how often to review suppliers. You decide, and show your reasoning.
After contract award

Assurance is strongest the day the contract is signed

Then suppliers change. They move hosting, take on subcontractors, let certificates lapse and have incidents of their own. A check at award shows none of it.

Change at the supplier
A new owner, new hosting or a new subcontractor behind a critical service.
Evidence that expires
Certificates and attestations lapse. Cyber Essentials, for one, renews every year.
Incidents further down
A breach at your supplier, or at one of its suppliers, that nobody tells you about.
From the Risk Ledger network

What a contract-award check doesn't show

Every supplier has suppliers of its own. Mapped across 25 UK councils on Risk Ledger, a thousand direct suppliers led to thousands more dependencies, and some of the most critical were missing basic controls.

7,659
further dependencies behind councils' 1,004 direct suppliers
99
critical concentration risks, where several councils rely on the same supplier
13
suppliers behind those critical risks had no Cyber Essentials certification

Across 26 UK government bodies on Risk Ledger: 3,240 direct suppliers, 5,886 further dependencies and 224 critical concentration risks.

Source: Risk Ledger network data, Every Link Matters 2026. Dependencies analysed up to the eighth tier.

Questions about the check

Does this complete a CAF assessment?

No. It covers the supplier part of CAF, mainly principle A4, and points you to the official route for your organisation. Your assessment still runs through that route, such as GovAssure or CAF for local government.

Is this official guidance?

No. It's independent guidance from Risk Ledger, built from NCSC, government, ICO and Parliament sources. Every result links to its source so you can check it.

Do all our suppliers need Cyber Essentials?

Not necessarily. PPN 014 asks for proportionate controls where a contract carries certain risks, and it accepts equivalent controls. Certification also doesn't assure the specific service you're buying.

We're an arm's-length body. Does GovAssure apply to us?

Your sponsoring department decides whether it applies in full, in part or not at all. The check gives you the questions to take to them.

What happens to my answers?

Nothing leaves your browser. We don't save your answers or ask for your details to see results.

How current is it?

We check every source against official guidance and update the check when it changes. Last checked October 2026.

See your suppliers, not just your answers

The check shows where to focus. Risk Ledger shows what's happening across your suppliers, and keeps that view current after award.