Paris (France) (AFP) – The Crédit Mutuel Arkéa bank declared on Wednesday that it had been the victim of a computer attack which allowed “fraudulent transactions to be carried out”, an incident “now under control”, she added.

Published on: 04/11/2026 - 11:51

The bank, whose headquarters is based in Relecq-Kerhuon (Finistère), near Brest, brings together several specialized subsidiaries and the Brittany and South-West federations of Crédit Mutuel.

Arkéa did not confirm the amount of the embezzlement of 133 million dollars (118 million euros) cited by the newspaper Le Télégramme. The bank, however, indicates to its customers that this incident "has no financial consequences for them", in a press release.

This attack comes less than a week after the hack of the cryptocurrency giant, Binance, which estimates the amount of assets affected by the hack of which it was the victim at 6.3 billion dollars, or 5.6 billion euros.

Temporary suspension

“As soon as this attack was detected, our teams immediately mobilized and took, as a precautionary measure, the decision to temporarily suspend certain transactions in order to secure operations and prevent any new fraudulent movements,” declares Arkéa.

“The resumption of these operations will take place quickly, in optimal security conditions, once the final checks and security measures have been carried out,” adds the bank.

Arkéa did not detail the method used by the pirates.

According to the Breton daily, the fraud was made public by ZachXBT, an independent investigator specializing in tracing funds on blockchains. According to Grégory Raymond, a specialist journalist whose message on

Le Télégramme indicates that Arkéa notified the Banque de France of the incident. Questioned by AFP, the Banque de France did not comment.

Crédit Mutuel Arkéa is part of the Confédération nationale du Crédit Mutuel (CNCM), but maintains great independence from the central body of the group which has 19 federations. It generated a net profit of 230 million euros over the first six months of the year.

Affected by numerous data leaks, France is among the countries most targeted by cyberattacks, due to the attractiveness of its data but also certain weaknesses in its defenses, according to several reports and experts.

Stolen data is often resold on the data black market and used for scams.

© 2026 AFP

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