Marquis Ransomware Attack Exposes Data of 672,075

Marquis, a Texas-based fintech company that provides software solutions for banks and credit unions, confirmed this week that a ransomware attack in August 2025 exposed the personal and financial data of 672,075 individuals across the United States.

The breach, discovered on August 14, 2025, involved hackers accessing the company's internal systems and copying sensitive files. The stolen information included names, addresses, phone numbers, dates of birth, Social Security numbers, taxpayer identification numbers, and financial account details such as payment card numbers, though without associated security codes or access credentials. Marquis serves more than 700 financial institutions, and the compromised data originated from customer relationship management tools used by these banks and credit unions to track client accounts, interactions, and marketing opportunities.

In notifications sent to affected individuals and filings with state attorney general offices, including those in Maine, Texas, Iowa, and South Carolina, Marquis emphasized that the incident was confined to its own systems and did not compromise the networks of its clients. "The incident was limited to Marquis's...