Between May 2018 and September 2024, France saw eight incidents of significant data breaches. The first recorded case was the May 2018 data breach at Apollo.io. The marketing company based in San Francisco lost approximately 10.93 million data records from French users. The latest reported data breach incident occurred at the France-based security company Thales. As a result of this incident, 9.5 GB of archive files were leaked.
Most significant data breaches in France from May 2018 to September 2024
Name of the organization
Impact
Dedalus Biologie (Feb 2021)
491,840 medical records
French Insurer AXA (May 2021)
3 TB of sensitive data and medical records exposed; possible unregistered DDoS attacks
Pierre Rouquès – Les Bluets Maternity Hospital (Oct 2022)
150 GB of personal data and medical records
Thales (Nov 2022)
9.5 GB of archive files leaked
iDealwine (Oct 2022)
Unkown
Corbeil-Essonnes (Aug 2022)
All hospital medical records published
Apollo.io (May 2018)
10,930,000 data records (nine billion data points and 125 million email addresses)
Assistance Publique-Hôpitaux de Paris (AP-HP) (2020)
1.4 million leaked medical records and data of COVID-19 patients
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UpGuard. (September 9, 2024). Most significant data breaches in France from May 2018 to September 2024 [Graph]. In Statista. Retrieved May 07, 2025, from https://www.statista.com/statistics/1407355/france-largest-data-breaches/
UpGuard. "Most significant data breaches in France from May 2018 to September 2024." Chart. September 9, 2024. Statista. Accessed May 07, 2025. https://www.statista.com/statistics/1407355/france-largest-data-breaches/
UpGuard. (2024). Most significant data breaches in France from May 2018 to September 2024. Statista. Statista Inc.. Accessed: May 07, 2025. https://www.statista.com/statistics/1407355/france-largest-data-breaches/
UpGuard. "Most Significant Data Breaches in France from May 2018 to September 2024." Statista, Statista Inc., 9 Sep 2024, https://www.statista.com/statistics/1407355/france-largest-data-breaches/
UpGuard, Most significant data breaches in France from May 2018 to September 2024 Statista, https://www.statista.com/statistics/1407355/france-largest-data-breaches/ (last visited May 07, 2025)
Most significant data breaches in France from May 2018 to September 2024 [Graph], UpGuard, September 9, 2024. [Online]. Available: https://www.statista.com/statistics/1407355/france-largest-data-breaches/
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