Cyber security breaches survey 2025/2026
An annual official statistic detailing the frequency and impact of cyber breaches attacks on businesses, charities and educational institutions.
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The government has surveyed UK businesses, charities and educational institutions to find out how they approach cyber security and gain insight into the cyber security issues they face. This official statistic informs government policy on cyber security and how government works with industry to build a prosperous and resilient digital UK.
For this year’s survey, the naming convention used for reference periods for the Cyber Security Breaches Survey has changed from a single year label (e.g. CSBS 2025) to a dual-year format (CSBS 2025/2026 or CSBS 2025 to 2026). This change aims to reduce confusion, as previously the survey’s title aligned with the year of publication but did not typically align with when the fieldwork was conducted, potentially misleading users about the timeframe of the findings.
You can see previous versions of this survey from 2017 - 2025 on the Cyber Security Breaches Survey collection page.