The MARQUIS SOFTWARE SOLUTIONS, INC. (ON BEHALF OF BUSINESS CUSTOMER DATA OWNERS) Data Breach: Reported Filing Facts

Marquis Software Solutions, Inc. appears to be a technology company specializing in enterprise software development and data management services for business clients. As a software provider, the company typically processes and stores sensitive business-related data, which may include employee records, client contact information, and proprietary financial or operational data entrusted to them by their business customers. This breach was officially reported to the Illinois Attorney General in 2025, confirming that unauthorized access to systems occurred. If you received a data breach notification letter, it indicates that your personal information, which was held by the company on behalf of one of their business customers, was potentially compromised. We recommend reviewing the letter carefully to understand the specific scope of the incident and the identity protection services being offered.

State: Illinois
Reported: August 14, 2025

What to do if you were affected

These general steps can help limit the risk of identity theft and fraud after any data breach.

Stay alert to targeted scams
Be cautious of calls, texts, or emails that reference this breach. Legitimate organizations won't ask you to confirm sensitive details through an unsolicited message.
Keep your notification letter
Save the notice you received. It documents that your information was involved and is often needed to enroll in any credit monitoring offered or to join a related legal claim.

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