UK Cyber Assessment Framework (CAF) v3.1

The UK Cyber Assessment Framework (CAF) v3.1 is used to help organizations assess, manage, and improve their cyber resilience in line with regulatory requirements. It provides a structured approach for evaluating cybersecurity controls, operational resilience, and incident response capabilities, especially for critical national infrastructure.

The UK CAF itself is not a certification, nor is it universally mandatory. However, regulators may require organizations in critical sectors to demonstrate adherence to the CAF as part of their regulatory compliance, and it is often referenced during audits or sector-specific inspections.

The CAF primarily applies to organizations operating critical infrastructure or essential services within the UK, as defined by relevant regulators. It may also be used by other organizations seeking to benchmark their cybersecurity practices or meet sector-specific compliance obligations.

The framework is structured around high-level objectives covering areas such as managing security risk, protecting systems, detecting cyber events, and minimizing the impact of cybersecurity incidents. Each objective is supported by indicators of good practice, which guide organizations in achieving consistent security outcomes.

Organizations typically implement the CAF through self-assessments or regulator-led reviews, examining their current security controls against the framework’s objectives and indicators. This process involves identifying gaps, prioritizing improvements, and ensuring that cyber risk management aligns with regulatory and business needs.

The UK CAF aligns closely with widely used cybersecurity standards, such as ISO 27001 and NIST CSF, but is adapted for the UK regulatory context and critical services. It provides a consistent, outcome-focused framework for evidence-based assessment that can complement other compliance programs.

Maintaining compliance with the CAF requires continuous monitoring, regular gap assessments, updating risk management processes, and documenting evidence of cybersecurity practices and improvements. Organizations should also be prepared for periodic regulatory reviews and demonstrate progress on remediation activities.

SmartSuite can help organizations operationalize the CAF by mapping objectives to specific cybersecurity policies and controls, managing risk assessments, tracking remediation efforts and control implementation, collecting compliance evidence, and supporting audit readiness. Its reporting capabilities enable ongoing monitoring and demonstration of compliance with the framework’s requirements.