43% of UK businesses identified a cyber breach or attack in the last 12 months, about 612,000 firms (Aug to Dec 2025 fieldwork, UK Department for Science, Innovation and Technology (DSIT), Cyber Security Breaches Survey)
| Group | Found a breach or attack |
|---|---|
| Micro (1 to 9) | 42% |
| Small (10 to 49) | 46% |
| Medium (50 to 249) | 65% |
| Large (250+) | 69% |
| All businesses | 43% |
In plain words
43% of UK businesses identified a cyber breach or attack in the last 12 months, about 612,000 firms (Aug to Dec 2025 fieldwork).
the latest figure (Aug to Dec 2025 fieldwork)
type of source
Why you can trust it. UK Department for Science, Innovation and Technology (DSIT), Cyber Security Breaches Survey: official data, government statistics office or regulator. 2,112 UK businesses and 1,085 charities, random-probability phone survey, fieldwork August to December 2025.
Source: UK Department for Science, Innovation and Technology (DSIT), Cyber Security Breaches Survey, Aug to Dec 2025 fieldwork
Method and use
Just over four in ten businesses (43%) and around three in ten charities (28%) reported having experienced any kind of cyber security breach or attack in the last 12 months. This equates to approximately 612,000 UK businesses
No changes recorded yet. First checked at the source on 23 Oct 2026.
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FAQ
43% of UK businesses identified a cyber breach or attack in the last 12 months, about 612,000 firms, for Aug to Dec 2025 fieldwork, according to UK Department for Science, Innovation and Technology (DSIT), Cyber Security Breaches Survey. We checked it at the source on 23 Oct 2026.
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