As of January 2025, the most significant data breach incident in the United Kingdom (UK) was the 2017-2018 Dixons Carphone breach. As a result of this incident, 14 million user records were affected, and 5.6 million payment card information was exposed. The Equifax data breach between 2011 and 2016 impacted over 15 million customers nationwide.

As of January 2024, about ** percent of organizations in the United Kingdom reported experiencing a data breach accident once a month. A further ** percent said they had encountered a data breach event less than once a month in the past 12 months. Meanwhile, ** percent said they had experienced a data breach incident once a week.

It started with a strange email. The kind you usually ignore. But for one midsize healthcare firm in Ohio, clicking that link changed everything. Within hours, sensitive patient records were encrypted, and hackers demanded payment in cryptocurrency. By the time IT figured out the breach, over 1.4 million records were...

This statistic displays the share of businesses that have had cyber security braches or attacks in the United Kingdom (UK) in 2019. Among all respondents, ** percent had breaches in the past 12 months. With respect to business size, ** percent of small firms experienced cyber security breaches in the past 12 months.Concerning the size of businesses, micro businesses had *** to **** employees, small businesses had ** to ** employees, medium businesses had ** to *** employees and large businesses had *** employees or more. On the other hand, there were many types of cyber security breaches experienced by businesses in the past 12 months such as malware.

The Cyber Security Breaches Survey, 2019 was run to understand organisations' approaches and attitudes to cyber security, and to understand their experience of cyber security breaches. Its aim was to support the Government by providing evidence that can inform policies which help to make Britain a safer place to do business online.

The data have been collected annually since 2016 to understand the views of UK organisations on cyber security. Data is collected on topics including online use; attitudes of organisations to cyber security and awareness of Government initiatives; approaches to cyber security (including investment and processes); incidences and impact of a cyber security breach or attack; and how breaches are dealt with by the organisation. This information helps to inform Government policy towards organisations, including how best to target key messages to businesses and charities so that they are cyber secure (and so that the UK is the safest place in the world to do business online). Please note that the UK Data Service only holds data from 2018 onwards.

The underlying data are useful for researchers to better understand the response across a range of organisations (rather than averages) and for wider comparability over time. The survey originally only covered businesses but was expanded to include charities from the 2018 survey onwards.

The U.K. ICO fined 23andMe £2.31 million for inadequate data protection, leading to a 2023 breach affecting over 6.9 million users, including 155,000 in the U.K.

The Cyber Security Breaches Survey, (CSBS) is run to understand organisations' approaches and attitudes to cyber security, and to understand their experience of cyber security breaches.. The aim of the survey is to support the Government by providing evidence that can inform policies which help to make Britain a safer place to do business online.

These surveys have been conducted annually since 2016 to understand the views of UK organisations on cyber security. Data are collected on topics including online use; attitudes of organisations to cyber security and awareness of Government initiatives; approaches to cyber security (including investment and processes); incidences and impact of a cyber security breach or attack; and how breaches are dealt with by the organisation. This information helps to inform Government policy towards organisations, including how best to target key messages to businesses and charities so that they are cyber secure (and so that the UK is the safest place in the world to do business online). The study is funded by the DCMS as part of the government's £2.6 billion National Cyber Strategy 2022 to protect and promote the UK in cyber space.

The underlying data are useful for researchers to better understand the response across a range of organisations and for wider comparability over time. The survey originally only covered businesses but was expanded to include charities from the 2018 survey onwards. From 2020, the survey includes a sample of education institutions (primary and secondary schools, further and higher education). Please note that the UK Data Service only holds datasets on each specific year from 2018 onwards.

Cyber Security Breaches Survey: Combined Dataset, 2016-2022 includes data from 2016 to 2022. This is cross-sectional data only and not all variables are included in all years. For longitudinal data, please access the Cyber Security Longitudinal Survey: Wave 1, 2021 (available from the UK Data Archive under SN 8969) and onwards.

Further information and additional publications can be found on the GOV.UK Cyber Security Breaches Survey webpage.

A survey conducted in the United Kingdom (UK) between August and December 2024, found that ** percent of companies needed additional staff time to deal with the breach or inform cutomers or stakeholders. Furthermore, ** percent of the companies needed to implement new measures for future attacks. Additionally, ** percent said the incident stopped the staff from carrying out daily work.

The Cyber Security Breaches Survey, 2025 (CSBS) was run to understand organisations' approaches and attitudes to cyber security, and to understand their experience of cyber security breaches. The aim of the survey was to support the Government by providing evidence that can inform policies which help to make Britain a safer place to do business online. Details of changes for the 2025 survey can be found in the Technical Annex documentation.

These surveys have been conducted annually since 2016 to understand the views of UK organisations on cyber security. Data are collected on topics including online use; attitudes of organisations to cyber security and awareness of Government initiatives; approaches to cyber security (including investment and processes); incidences and impact of a cyber security breach or attack; and how breaches are dealt with by the organisation. This information helps to inform Government policy towards organisations, including how best to target key messages to businesses and charities so that they are cyber-secure (and so that the UK is the safest place in the world to do business online). The study is funded by the Department for Science, Innovation and Technology (DSIT) and the Home Office.

The underlying data are useful for researchers to better understand the response across a range of organisations and for wider comparability over time. The survey originally only covered businesses but was expanded to include charities from the 2018 survey onwards. From 2020, the survey includes a sample of education institutions (primary and secondary schools, further and higher education). Please note that the UK Data Service only holds data from 2018 onwards.

Further information and additional publications can be found on the "http://GOV.UK Cyber Security Breaches Survey 2025https://www.gov.uk/government/statistics/cyber-security-breaches-survey-2025" target="_blank"> GOV.UK Cyber Security Breaches Survey 2025 web page.

Abstract copyright UK Data Service and data collection copyright owner. The Cyber Security Breaches Survey, 2024 (CSBS) was run to understand organisations' approaches and attitudes to cyber security, and to understand their experience of cyber security breaches. The aim of the survey was to support the Government by providing evidence that can inform policies which help to make Britain a safer place to do business online. Details of changes for the 2024 survey can be found in the Technical Annex documentation. These surveys have been conducted annually since 2016 to understand the views of UK organisations on cyber security. Data are collected on topics including online use; attitudes of organisations to cyber security and awareness of Government initiatives; approaches to cyber security (including investment and processes); incidences and impact of a cyber security breach or attack; and how breaches are dealt with by the organisation. This information helps to inform Government policy towards organisations, including how best to target key messages to businesses and charities so that they are cyber-secure (and so that the UK is the safest place in the world to do business online). The study is funded by the DSIT as part of the National Cyber Security Programme. The underlying data are useful for researchers to better understand the response across a range of organisations and for wider comparability over time. The survey originally only covered businesses but was expanded to include charities from the 2018 survey onwards. From 2020, the survey includes a sample of education institutions (primary and secondary schools, further and higher education). Please note that the UK Data Service only holds data from 2018 onwards. Further information and additional publications can be found on the GOV.UK Cyber Security Breaches Survey 2024 web page. Main Topics: Organisational cyber security, views, experiences and behaviours of organisations (UK businesses, charities and educational institutions) on cyber security and cyber security breaches. Multi-stage stratified random sample

Jaguar Land Rover halts global car production after a cyber attack disrupts operations, forcing system shutdowns at plants and showrooms worldwide.

In 2022, ********* of respondents from the United Kingdom (UK) stated that their organization lost between 100,000 British pounds and ******* British pounds as a result of a breach. These numbers are reported at a time during which cyberattacks are on the rise. As malicious actors use more sophisticated technology to advance the complexity of their attacks, businesses must respond by better securing their IT.

Security breaches incurred by individuals

The Cyber Security Breaches Survey, 2023 (CSBS) was run to understand organisations' approaches and attitudes to cyber security, and to understand their experience of cyber security breaches. The aim of the survey was to support the Government by providing evidence that can inform policies which help to make Britain a safer place to do business online. Details of changes for the 2023 survey can be found in the Technical Annex documentation.

These surveys have been conducted annually since 2016 to understand the views of UK organisations on cyber security. Data are collected on topics including online use; attitudes of organisations to cyber security and awareness of Government initiatives; approaches to cyber security (including investment and processes); incidences and impact of a cyber security breach or attack; and how breaches are dealt with by the organisation. This information helps to inform Government policy towards organisations, including how best to target key messages to businesses and charities so that they are cyber secure (and so that the UK is the safest place in the world to do business online). The study is funded by the DSIT as part of the National Cyber Security Programme.

The underlying data are useful for researchers to better understand the response across a range of organisations and for wider comparability over time. The survey originally only covered businesses but was expanded to include charities from the 2018 survey onwards. From 2020, the survey includes a sample of education institutions (primary and secondary schools, further and higher education). Please note that the UK Data Service only holds data from 2018 onwards.

Further information and additional publications can be found on the GOV.UK Cyber Security Breaches Survey 2023 webpage.

Latest Edition Information
For the second edition (August 2023), the data file has been updated to correct an error with the variable COUNTRY. In the earlier version, some non-charity data had been mistakenly mapped to a country in this variable, which refers to charities sampled only. These respondents have now been recoded as -1 (missing).

The number and type of information security breaches affecting UK businesses in 2012. Based on a survey of 1,402 UK businesses, carried out in four separate questionnaires.