What is the CAF?

The NCSC Cyber Assessment Framework (CAF) provides a structured approach to assessing and improving cyber resilience, particularly for organisations operating within Critical National Infrastructure (CNI) and regulated sectors.

Developed by the National Cyber Security Centre, CAF helps organisations measure their security posture against clear, outcome-focused principles. Aligning with CAF version 4.0 will be a statutory requirement under the forthcoming Cyber Security and Resilience Bill. The framework has 41 individual assessments grouped within the following objectives:

Objective A: Managing Security Risk
Objective B: Protecting Against Cyber Attacks
Objective C: Detecting Cyber Security Events
Objective D: Minimising the Impact of Cyber Security Incidents

Protos Networks supports organisations in understanding, implementing and evidencing CAF requirements. Whether you need structured gap analysis, control implementation or ongoing support, we provide practical guidance that aligns security improvement with operational reality.

CAF Support From Protos

Clear Interpretation of the CAF

CAF is built around principles and outcomes rather than prescriptive checklists. We translate these into practical tailored actions.

Cyber Maturity Assessments

We can assess your current posture against CAF objectives, identifying strengths, weaknesses and prioritised remediation actions.

Practical Control Implementation

From identity and access management to monitoring and incident response, we help embed the controls needed to meet CAF expectations.

Board-Level Reporting

CAF places strong emphasis on leadership and accountability. We deliver executive reporting to ensure compliance is visible at the board level.

Evidence and Audit Readiness

We help you build defensible documentation and artefacts, ensuring you can clearly demonstrate alignment to regulators.

Ongoing Cyber Maturity

CAF isn’t a one-off exercise. We work with you to continuously improve resilience, adapting to emerging threats and regulatory expectations.

How Protos Can Help

The CAF is more than a compliance exercise; it’s a blueprint for resilient operations. By aligning with CAF, organisations strengthen their ability to prevent, detect and respond to cyber threats in a structured, measurable way. Protos Networks combines technical expertise with governance insight, helping you move beyond theory into demonstrable resilience.

For organisations operating in Critical National Infrastructure or that are going to come within the scope of the Cyber Security and Resilience Bill, CAF is more than guidance; it underpins regulatory oversight and operational assurance.

Protos Networks supports regulated entities with:

Structured CAF gap analysis aligned to regulator expectations
Risk and governance frameworks suitable for board reporting
Secure architecture design and control implementation
24/7 monitoring and incident response capability
Supply chain risk management support

Cyber Maturity Assessments

Not sure where you stand against the NCSC Cyber Assessment Framework? Our structured Cyber Maturity Assessment provides a clear, evidence-based view of your current posture, aligned to CAF principles and outcomes. We identify strengths, highlight gaps and provide a prioritised roadmap to improve resilience across governance, technical controls and operational response. Book your Cyber Maturity Assessment today and take the first step towards structured, measurable cyber resilience.

CMA Data Sheet