Question to the Cabinet Office:

To ask the Chancellor of the Duchy of Lancaster and Minister for the Cabinet Office, with reference to page 41 of his Department’s Integrated Review 2021, how many critical vulnerabilities in the cyber systems of the public sector has the National Cyber Security Centre addressed as at 13 May 2021.

It is for each public sector organisation to remediate vulnerabilities in their systems and this information is not held centrally. This is achieved through activities such as designing systems to be secure, regularly patching, continuous monitoring, security testing and vulnerability disclosure programmes. The NCSC and Cabinet Office provide expert advice and guidance to help public sector organisations address critical vulnerabilities.