
A June intrusion at France's DGFIP leaked names, addresses, and income data for 678,000 people, including 27,000 high earners, compounding wrench attack risks for crypto holders.
A June intrusion at France’s tax authority exposed personal and income data for 678,000 individuals, including thousands of high earners, in the country that has become the world’s most active market for wrench attacks on crypto holders.
Hackers viewed and extracted records from the Directorate General of Public Finances after stealing the credentials of a DGFIP agent between June and July, the agency confirmed last Thursday. The stolen data include reference tax income, family quotient, and withholding tax rate, according to the DGFIP. Multiple media reports say it also includes names, emails, phone numbers, and home addresses.
Nearly 27,000 of the exposed individuals declared income of at least €100,000. Another 386 reported more than €1 million, and eight reported more than €10 million. The database is reportedly being sold on dark web marketplaces.
The breach comes as France leads the world in physical attacks on crypto holders. Chainalysis recorded 30 publicly known violent crypto attacks in the country in the first half of 2026, with more than $30 million taken. That pace puts the year on track to surpass 2025’s record of $58 million.
Bitcoin security researcher Jameson Lopp, who maintains a public database of physical attacks on crypto holders, said on X that the leak was another blow to bitcoin holders in the country where these attacks are most common.
The exposure compounds a separate leak disclosed the same week. Trezor said on Wednesday that a breach at its shipping provider ShipMonk exposed data on nearly 14,000 customers, including the phone numbers and addresses of 11,742 people. That effectively provided a verified list of hardware wallet buyers with delivery addresses attached.
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