Back to list

Crédit Mutuel Arkéa Confirms Cyberattack; Customer Assets Unaffected

2026-11-04 18:18

TechFlow, Nov. 4 — According to Cryptoast, Fortuneo, the online bank under French group Crédit Mutuel Arkéa, suffered a large-scale fraud attack. Attackers initiated transfers by spoofing recipient identities and moved funds into cryptocurrency exchange accounts opened with false identities. On-chain detective ZachXBT previously estimated that the amount involved exceeded $133 million and believed actual losses could be higher.

According to tracking by blockchain analytics firm Bitquery, approximately $62.98 million in stablecoins was swapped into 27,553 ETH via UniswapX within 4 hours. The funds were then moved through multiple cross-chain and instant-swap services, with some converted into privacy coin Monero (XMR). Kraken has restricted the accounts involved, and Crypto.com has also taken measures to freeze related funds. Both platforms said their systems and customer accounts were not compromised.

Crédit Mutuel Arkéa confirmed to Cryptoast on Nov. 4 that it had suffered an attack involving fraudulent transactions, saying the incident was under control, that some transactions had been suspended to prevent further fund transfers, and that customer assets were unaffected. The investigation remains ongoing. The bank has not yet disclosed the actual loss amount. ZachXBT, however, believes that if OTC trades are included, actual losses may increase further.

Source: TechFlow