Marquis, a fintech company based in Plano, Texas, has disclosed that a ransomware attack last year compromised the personal and financial data of more than 672,000 individuals. This breach, which occurred in August 2025, has prompted the company to notify those affected about the theft of sensitive information.
The breach allowed hackers to access a range of personal details, including names, dates of birth, postal addresses, and Social Security numbers. Additionally, financial information such as bank account, debit, and credit card numbers was also stolen.
According to a report filed with Maine’s attorney general’s office, over half of the affected individuals reside in Texas. This incident represents one of the most significant data breaches reported in recent times, shedding light on the vulnerabilities within financial institutions.
Marquis has taken legal action against its firewall provider, SonicWall, alleging that security deficiencies on their part facilitated the breach. The lawsuit claims that SonicWall's failure to protect critical information allowed hackers to exploit vulnerabilities in Marquis' network.
As the fintech landscape continues to evolve, incidents like this underscore the importance of robust cybersecurity measures. Companies must prioritize the protection of customer data to maintain trust and compliance with regulatory standards.
Key Takeaways:
- Over 672,000 individuals affected by the data breach.
- Personal and financial information, including Social Security numbers, compromised.
- Legal action taken against SonicWall for security failures.
What to Do Next:
- Monitor financial accounts for unusual activity.
- Consider placing a fraud alert on credit reports.
- Stay informed on updates from Marquis regarding the breach.
