Ransomware Breach at Marquis Software Solutions Exposes Bank Customer Data

Marquis Software Solutions, a provider of marketing and compliance software to over 700 banks and credit unions, experienced a significant data breach after ransomware attackers exploited a vulnerability in its SonicWall firewall. The breach, detected on August 14, allowed attackers to access files containing sensitive information stored by Marquis on behalf of its financial institution clients, potentially exposing the personal data of at least 250,000 individuals.

The compromised data may include names, addresses, phone numbers, dates of birth, Social Security numbers, tax identification numbers, and financial account information. Marquis Software stated that the incident was limited to its own environment, but the breach has affected multiple financial institutions whose customer data was managed by the vendor. The company is working with digital forensic investigators to assess the full scope of the breach and has notified affected parties accordingly.