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Information on the Ministry of Defence Cyber Security Model (CSM), including the standards and guidance for suppliers to meet CSM version 4.
Keep systems and data safe with the appropriate level of security.
Liz Lloyd, Minister for the Digital Economy, spoke at the launch of the Software Security Ambassadors Scheme on 15 January 2026.
Guidance for organisations when making decisions about the design and operation of enterprise IT services which handle OFFICIAL information.
Check what security features you’ll need put on tobacco product packaging.
Guidelines for civil panel counsel, revised to include the new government security classifications.
Find out how to protect your login details and reduce the risk of fraud when using HMRC online services.
CHERI is a semiconductor technology which improves cyber security. This page details government action to increase its adoption.
Find out how to protect your details, how to report fraud and what HMRC does to help keep you safe online.
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