Marquis blames ransomware breach on SonicWall cloud backup hack
Overview
Marquis Software Solutions, a financial services provider based in Texas, has linked a ransomware attack that compromised its systems in August 2025 to a subsequent security breach involving SonicWall's cloud backup services. This incident impacted several U.S. banks and credit unions, raising concerns about the security of financial data and the potential for widespread disruption in banking services. The breach reportedly allowed attackers to exploit vulnerabilities in SonicWall's systems, leading to the ransomware attack on Marquis. This situation not only emphasizes the interconnected nature of cybersecurity risks but also highlights the importance of robust security measures for third-party services that handle sensitive financial information. As organizations increasingly rely on cloud solutions, ensuring their security is crucial to protect against similar incidents in the future.
Key Takeaways
- Active Exploitation: This vulnerability is being actively exploited by attackers. Immediate action is recommended.
- Affected Systems: Marquis Software Solutions, SonicWall cloud backup services, U.S. banks, credit unions
- Action Required: Organizations should review and strengthen their cloud backup security measures, apply any available patches from SonicWall, and conduct thorough security audits.
- Timeline: Disclosed in September 2025
Original Article Summary
Marquis Software Solutions, a Texas-based financial services provider, is blaming a ransomware attack that impacted its systems and affected dozens of U.S. banks and credit unions in August 2025 on a security breach reported by SonicWall a month later. [...]
Impact
Marquis Software Solutions, SonicWall cloud backup services, U.S. banks, credit unions
Exploitation Status
This vulnerability is confirmed to be actively exploited by attackers in real-world attacks. Organizations should prioritize patching or implementing workarounds immediately.
Timeline
Disclosed in September 2025
Remediation
Organizations should review and strengthen their cloud backup security measures, apply any available patches from SonicWall, and conduct thorough security audits.
Additional Information
This threat intelligence is aggregated from trusted cybersecurity sources. For the most up-to-date information, technical details, and official vendor guidance, please refer to the original article linked below.
Related Topics: This incident relates to Ransomware, Exploit, Data Breach.