UK Cabinet Office

10/14/2025 | Press release | Distributed by Public on 10/13/2025 17:14

Ministerial letter on cyber security to leading UK companies

Hostile cyber activity in the UK is growing more intense, frequent and sophisticated. In light of recent cyber incidents, the government has written to leading UK companies with urgent advice to help ensure they are best protected against cyber threats.

The letter sets out 3 actions large businesses can take to improve their cyber resilience:

  1. Make cyber risk a Board-level priority using the Cyber Governance Code of Practice

  2. Sign up to the National Cyber Security Centre's Early Warning service

  3. Require Cyber Essentials in your supply chain

This letter is being sent to all companies in the FTSE100 and FTSE250, as well as a number of other leading UK firms.

UK Cabinet Office published this content on October 14, 2025, and is solely responsible for the information contained herein. Distributed via Public Technologies (PUBT), unedited and unaltered, on October 13, 2025 at 23:14 UTC. If you believe the information included in the content is inaccurate or outdated and requires editing or removal, please contact us at [email protected]