ZachXBT names Crédit Mutuel Arkéa as suspected victim of $133M exploit

The on-chain investigator says delayed disclosure let attackers launder over $30 million before anyone could intervene On-chain investigator ZachXBT has named French bank Crédit Mutuel Arkéa as the suspected institution behind a theft now estimated at more than $133 million. The bank has not confirmed anything. As of November 4, it had issued no official statement about the incident. How the numbers grew ZachXBT first flagged the suspected theft on November 2, 2026. At that stage he described the victim only as an unnamed financial institution in Europe, with funds taken from its accounts on centralized exchanges. His initial estimate was more than $106 million. That figure did not hold for long. After his first disclosure, ZachXBT traced additional withdrawals totaling more than $27 million. That pushed the estimated total past $133 million by November 4. Most of the money left the exchanges as stablecoins, specifically USDC and USDT. The withdrawals came from platforms including Kraken, Crypto.com, and OKX, between November 1 and 2. On November 4, ZachXBT went a step further and identified the suspected victim by name. Crédit Mutuel Arkéa is a French cooperative bank with approxi...