In short
- A reported breach of France’s tax authority uncovered information tied to 678,437 individuals and companies.
- The information allegedly embrace earnings figures, addresses, tax identifiers, and household info.
- The information may assist criminals craft focused scams towards rich taxpayers and Bitcoin holders.
A hacker is promoting a trove of French tax information that might expose greater than 678,000 individuals and companies, together with Bitcoin holders, to phishing, id theft, and focused assaults.
In accordance with a report by French cybersecurity outlet FrenchBreaches, a hacker is promoting information allegedly stolen from France’s tax authority, the DGFiP, throughout a June breach for a number of thousand euros.

“Extra dangerous information for Bitcoiners dwelling within the main nation for wrench assaults,” Chief Safety Officer at Bitcoin safety platform Casa Jameson Loop wrote on X. “The French tax authority has been hacked, and 678K information leaked.”
FrenchBreaches mentioned the database accommodates information on 392,867 people and 285,570 professionals, together with 26,805 individuals with reference tax earnings of no less than $116,000, 386 above $1.16 million, and eight above $11.6 million; the hacker is reportedly providing the file for a number of thousand {dollars}.
FrenchBreaches mentioned a pattern of the leaked information included names, delivery particulars, house and e mail addresses, telephone numbers, earnings figures, withholding tax charges, household standing, dependents, and tax-share info.
“There DGFiP formally confirms the intrusion in its info system,” FrenchBreaches wrote in an replace. Stolen credentials have been utilized in late June to entry and extract taxpayer information, and the variety of individuals affected stays beneath investigation, the agency added.
In accordance with FrenchBreaches, the attacker used stolen VPN credentials and an inner search device to extract names, contact particulars, tax identifiers, earnings figures, withholding charges, and household info earlier than officers minimize off entry.
“A scammer with actual tax info and understanding of the existence of an previous method to the DGFiP may, for instance, assemble a fraudulent message that’s far more credible than a easy faux generic e mail,” FrenchBreaches wrote.
Whereas the FrenchBreaches report centered on the info leak, it comes amid an increase in wrench assaults, during which criminals use violence or threats to steal cryptocurrency.
In July, CertiK reported 52 assaults worldwide in the course of the first half of 2026, together with 33 in France. Earlier this month, Chainalysis reported 46 assaults by way of June, together with 30 in France, with greater than $30 million stolen.
“Criminals have acknowledged that crypto holders are high-value targets as a result of they possess wealth in an immediately and irreversibly transferable type,” Chainalysis wrote.
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