French bank Fortuneo suspected of cross-border transfer attack, $133 million flowed to cryptocurrency exchanges.

French online bank Fortuneo, a subsidiary of Crédit Mutuel Arkéa, is suspected of suffering a large-scale cross-border transfer fraud in which attackers allegedly used forged payee details and fake identities to open accounts at Kraken and other crypto exchanges, converting fiat into stablecoins. On-chain tracking shows roughly $63 million in stablecoins were swapped for 27,553 ETH via UniswapX between Nov. 1 and 2, then moved through cross-chain bridges and instant-exchange services, with some funds converted to privacy coin Monero (XMR). Chain sleuth ZachXBT estimated losses above $133 million, though a reporter citing sources said the true figure could be higher once off-chain flows and OTC trades are included. Kraken reportedly began freezing related funds overnight Monday to Tuesday, prompting the network to shift to other platforms. Investigators are weighing two explanations—compromise of the bank's payment system or an executive-impersonation scam involving an insider—while the attackers' identity, final loss figure, fund ownership and whether the bank remains exposed are all unconfirmed, and Crédit Mutuel Arkéa, which holds $235 billion in assets, has not publicly responded.