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Incidents involving:

Waltio

Data breachContained

Data leak at Waltio

In January 2026, French crypto-tax platform Waltio disclosed a breach exposing data from around 50,000 users — email addresses and 2024 tax-report summaries (gains/losses and year-end balances) — followed by an extortion attempt the company refused to pay.

Victim
Waltio
Records
50.0K