Select committee: Public Accounts Committee
Conclusion 24
24th Report - Government cyber resilience
Published 9 May 2025
Addressed to HM Treasury
Public Accounts Committee Government cyber resilience All items in this report Report on parliament.uk ↗ Inquiry on parliament.uk ↗
Conclusion (the committee's words)
Many of government’s IT systems are ‘legacy’, because they are ageing and outdated but still in use. The government estimated that it used nearly half of its £4.7 billion IT expenditure in 2019 to keep legacy systems running. Risks to public services posed by legacy technology have built up over many years.51 In 2023, the Government Digital Service published a legacy IT risk assessment framework. It has used this to collect data from some departments about the legacy systems they own, the risks they present, and plans to remediate them.52
From: Public Accounts Committee, 24th Report - Government cyber resilience (HC 643), 9 May 2025
Government response
Latest Treasury Minutes progress report to the Committee of Public Accounts on the Twenty-fourth Report of Session 2024-26
The government responded to the whole report on 4 June 2026.
Treasury minutes: Government response to the Committee of Public Accounts on the Twenty-fourth report from Session 2024-26
Published 18 September 2025.
Summary written by Accountability Index from the government's response. It is not the government's own words.The government "agrees with the Committee's recommendation" in each of the six areas, setting target implementation dates between winter 2025 and autumn 2026.
- On the evolving threat, the government agrees, notes responsibility has moved to DSIT, and says DSIT will publish an implementation plan in winter 2025 and write to the Committee "in one year's time".
- On cyber skills, it "acknowledges the ongoing cyber skills gaps" and says that "Early next year" DSIT will set how many anticipated vacancies its central initiatives will address and how it will assist departments with the remaining gaps.
- On accountability and funding, DSIT will set expectations for departments to appoint a board member with cyber security and digital resilience expertise, and is "working with HMT on mechanisms for protecting budgets" for cyber and legacy remediation programmes.
- On arm's-length bodies and supply chains, it says departments remain "ultimately accountable for the risk" and that DSIT will "assure and enforce" that Accounting Officers are meeting this responsibility.