Fintech Firm Marquis Alerts Dozens Of US Banks And Credit Unions Of A Data Breach After Ransomware Attack
Marquis data breach exposes customer info across U.S. banks after ransomware attack.
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Fintech Firm Marquis Alerts Dozens Of US Banks And Credit Unions Of A Data Breach After Ransomware Attack Marquis Data Breach: What Happened and Who’s Affected? A growing number of Americans are searching to understand what the Marquis data breach means for their bank accounts, how many people were affected, and whether their personal information is at risk. Early findings show that the breach stems from a significant ransomware attack on the fintech provider earlier this year, with data stolen from dozens of U.S. banks and credit unions. Because Marquis services more than 700 financial institutions nationwide, the breach has quickly become one of the most wide-reaching fintech incidents of 2025. The company has now started notifying organizations and consumers following new disclosures filed with multiple U.S. states. These filings offer the clearest picture yet of the scope of exposure. For many customers, the biggest question is whether sensitive banking data has been compromised. So far, state reports reveal a clearer, but deeply concerning, outline of the event. Credit: Olga Arsentyeva…
