Bitcoiners Warned After French Tax Authority Confirms Data Breach Affecting Hundreds of Thousands

Bitcoin Magazine Bitcoiners Warned After French Tax Authority Confirms Data Breach Affecting Hundreds of Thousands Bitcoiners have been warned after France’s tax administration confirmed that hackers breached its information system, exposing sensitive financial and personal data belonging to hundreds of thousands of taxpayers and businesses.

Writing on X on Friday, Bitcoin developer Jameson Lopp said the leak was “more bad news for Bitcoiners living in the leading country for wrench attacks.” Lopp has created a tracker counting wrench attacks — when physical violence is used to steal crypto — across the world.

A large amount happens in France, where data has been leaked before.  More bad news for Bitcoiners living in the leading country for wrench attacks.

The French tax authority has been hacked and 678K records leaked.26,805 people with income over 100K€ 386 people with income over 1M€ 8 people with income over 10M€https://t.co/KlT0XqPLFR— Jameson Lopp (@lopp) August 14, 2026 The news comes one day after hardware wallet manufacturer Trezor announced a data breach exposing customer data.  Cybersecurity researchers at FrenchBreaches, who reviewed samples of the leaked data, reported that the affected records break down to roughly 392,867 individuals and 285,570 businesses.  Among the individuals, an estimated 26,805 have a reported annual taxable income of €100,000 or more, 386 exceed €1 million, and eight exceed €10 million.