Crédit Mutuel Arkéa confirms a cyberattack; investigator ZachXBT flagged crypto withdrawals

Original title (Swedish): Nya uppgifter om jättestölden: Ensam datadetektiv bakom upptäckt

Sweden · Source:Realtid · 9 Nov 2026

By Nordic Crypto editorial desk · published 12 Nov 2026

Crédit Mutuel Arkéa has confirmed a cyberattack carried out through a service provider's platform, and said the funds may then have been converted into cryptocurrency, according to the bank's statement of 4 November 2026. Blockchain investigator ZachXBT first flagged large unauthorised withdrawals from crypto-exchange accounts, Realtid reports, citing figures of about 133 million US dollars; the bank has not confirmed that amount and said it could only validate the order of magnitude.

Read at Realtid

Primary source: Crédit Mutuel Arkéa — additional information, 4 November 2026

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