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<p>In 2020, 43% of micro businesses, 62% of small businesses and 75% of large businesses
had identified cyber security breaches or attacks in the last 12 months. Figures for
the last 4 years are taken from the Cyber Security Breaches Survey.</p><p><strong>
</strong></p><table><tbody><tr><td><p> </p></td><td><p>Micro (1-9 staff)</p></td><td><p>Small
(10-49 staff)</p></td><td><p>Large (250+ staff)</p></td></tr><tr><td><p>2020</p></td><td><p>43%</p></td><td><p>62%</p></td><td><p>75%</p></td></tr><tr><td><p>2019</p></td><td><p>28%</p></td><td><p>40%</p></td><td><p>61%</p></td></tr><tr><td><p>2018</p></td><td><p>40%</p></td><td><p>47%</p></td><td><p>72%</p></td></tr><tr><td><p>2017</p></td><td><p>38%</p></td><td><p>52%</p></td><td><p>68%</p></td></tr></tbody></table><p><strong>
</strong></p><p>The survey aims to account for all the types of breaches or attacks
that organisations might face including accidental breaches, as well intentional and
recorded cyber attacks that did not get past an organisation’s defences. This only
measures the breaches or attacks that organisations have themselves identified so
the figures reported may underestimate the full extent of the problem.</p><p><strong>
</strong></p><p>The total number of cyber incidents affecting central government departments
is not held centrally. However, since its creation in 2016 the National Cyber Security
Centre (NCSC) has continued to provide assistance to central government departments
and agencies to secure their networks and develop their departmental security strategies.
This includes the deployment of the NCSC’s Host-Based Capability tool to over 35,000
government devices in the past year, which helps to collect and analyse technical
metadata to help government departments understand the threat they face, and ongoing
engagement with government departments and agencies as part of the Active Cyber Defence
service.</p><p> </p>
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