Question to the Cabinet Office:

To ask the Minister for the Cabinet Office, pursuant to the Answer of 3 September 2025 to Question 72570 on National Security: Infrastructure, what progress he has made on developing a new Cyber Resilience Index.

The government is working tirelessly to improve the cyber resilience of our most critical services and systems, including the UK’s Critical National Infrastructure (CNI). Improving our understanding of the cyber risk we are carrying as a nation is fundamental to this. In order to build a better understanding of cyber risk, we are developing a new Cyber Resilience Index (CRI) which will build on existing measures of cyber resilience to provide a cross-sector, holistic overview of cyber resilience for UK CNI, allowing us to target resilience building efforts.

The Cabinet Office is working closely with the National Cyber Security Centre and CNI Lead Government Departments to progress the CRI. We are keen for this to be a collaborative process so that the Index delivers for all CNI sectors. More widely, the upcoming Cyber Security & Resilience Bill will also address the evolving cyber risk picture for CNI sectors across the UK.