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French taxpayers' data stolen in cyberattack, French Finance Ministry says

Straitstimes • August 14, 2026

A “malicious actor” claimed on Aug 12 that he broke into France’s tax agency, the General Directorate of Public Finances, in late June.

PARIS – French taxpayers’ data, both individuals and professionals, were stolen in a cyberattack, the French Finance Ministry said late on Aug 13 .

A “malicious actor” claimed on Aug 12 that he broke into the tax agency, the General Directorate of Public Finances, in late June, the ministry said in a statement.

Investigations confirmed the cyberattack, which led to the consulting and extraction of taxpayers’ data, the statement said.

Further probes are ongoing to determine which specific data and the exact number of taxpayers affected, the ministry said, adding further findings will be disclosed.

“Users concerned will receive individual information specifying the data that may have been consulted or extracted and, where applicable, the precautionary measures to be adopted,” the statement said.

Data of close to 700,000 taxpayers were stolen, FrenchBreaches, a platform tracking cyberattacks in the country, reported, saying it got the information from the alleged hackers.

Ministry spokespeople did not immediately respond to a request to on the FrenchBreaches data. REUTERS

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Massive Cyberattack Exposes Data of 700,000 French Taxpayers In late June 2026, a cyberattack on France's General Directorate of Public Finances (DGFiP) compromised the data of approximately 700,000 taxpayers. The breach was confirmed by the French Finance Ministry on August 13, 2026, after a hacker known as 'ZeroBytes' claimed responsibility and advertised the stolen data on a cybercrime forum. The attack reportedly involved the exploitation of stolen credentials and an MFA bypass technique, allowing unauthorized access to sensitive taxpayer information, including names, addresses, and income details. Initial reports indicated that 70 gigabytes of data were extracted, with the potential for further exposure of sensitive banking information. The Ministry is conducting investigations to assess the full scope of the breach and notify affected individuals. This incident follows a series of cyberattacks on French public sector entities earlier in the year, highlighting ongoing vulnerabilities in national cybersecurity. 38 sources 73

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French taxpayers' data stolen in cyberattack, French Finance Ministry says

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