French Crypto Tax Platform Waltio Hit by 50,000-User Data Breach

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Waltio, French Crypto Tax Platform, Hit by Ransomware Attack Waltio, a French cryptocurrency tax filing platform, reported a ransomware attack by the hacker group 'Shiny Hunters' on January 23, 2026. The group claims to have obtained personal data of around 50,000 customers, primarily located in France, and is demanding a ransom. Waltio has notified the authorities about the incident. 3 sources 76