French Crypto Tax Manager Waltio Confirms Security Breaches Leading to Data and Fund Thefts

Waltio, a French tax data manager for cryptocurrency holders, has confirmed multiple security vulnerabilities that resulted in user data thefts and cash fund losses. The company, which claims 120,000 users, did not specify the technical nature of the vulnerabilities or the exact amounts of the losses. The incidents were revealed in January 2026. No additional details on exploitation methods or corrective measures have been provided.