(FILES) This photograph shows the logo of Credit Mutuel-Arkea in Brest, western France, on March 16, 2018. Crédit Mutuel Arkéa announced in a statement on November 4, 2026 evening that it had been the target of a "cyberattack", resulting in losses of in excess of 100 million euros. The attackers "used Crédit Mutuel Arkéa's own account to carry out transactions to other banking institutions", and then "converted this money into cryptocurrency via specialised platforms". They did "not go through the accounts of customers of its federations or subsidiaries", the bank emphasises. (Photo by Fred TANNEAU / AFP via Getty Images)