France, Nov. 5 -- Confirming the attack on Wednesday, Credit Mutuel Arkea said that hackers had targeted its own accounts rather than those of its customers, insisting that client savings and deposits were safe.

The Paris prosecutor's office said it had opened an investigation on 4 November after receiving a complaint from the bank.

The investigation is being handled by France's specialist cybercrime police unit, OFAC, and focuses on suspected hacking by an organised criminal group.

While the full financial impact remains unclear, the attack represents a significant breach of a major French financial institution and raises fresh questions about the security of banking networks.

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