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Case File: MARQUIS SOFTWARE SOLUTIONS, INC. (ON BEHALF OF BUSINESS CUSTOMER DATA OWNERS) Data Breach

This file collects the dated facts on record for the MARQUIS SOFTWARE SOLUTIONS, INC. (ON BEHALF OF BUSINESS CUSTOMER DATA OWNERS) incident. The state report is dated August 14, 2025.

Timeline

  1. August 14, 2025Report filed in IllinoisDate the notice was lodged with the Illinois Attorney General.

Case facts

Filing state
Illinois
Date reported
August 14, 2025
Receiving office
Illinois Attorney General

Case notes

MARQUIS SOFTWARE SOLUTIONS, INC. submitted a data breach filing with regulators on August 14, 2025. This report indicates an incident involving personal information that the company manages on behalf of various business customer data owners. The filing was made in Illinois, where the event is being documented.

The specific details regarding how the breach occurred have not been specified in the public filing, nor have the exact categories of personal information exposed. For these reasons, individuals are advised to consider that any part of their personal data may have been involved in this event.

At present, the number of individuals affected by this incident is not specified. MARQUIS SOFTWARE SOLUTIONS, INC. states that an investigation into the event is actively ongoing. Further details may emerge as this investigation progresses.

In light of this filing, individuals who may have been customers of businesses that use MARQUIS SOFTWARE SOLUTIONS, INC. for data management should take proactive steps. Regularly review account statements and credit reports for any suspicious activity. If you identify any unfamiliar charges or inquiries, report them immediately to the relevant financial institution or credit bureau.

It is also advisable to reset passwords for online accounts, especially those that share credentials, and enable multi-factor authentication wherever possible. These general precautions can help protect your personal information from potential misuse following an unspecified data event such as this. All available information regarding this incident is based on public disclosures made to regulatory bodies.

Questions about this case file

Where does the MARQUIS SOFTWARE SOLUTIONS, INC. (ON BEHALF OF BUSINESS CUSTOMER DATA OWNERS) case file come from?
Every entry is taken from the breach report MARQUIS SOFTWARE SOLUTIONS, INC. (ON BEHALF OF BUSINESS CUSTOMER DATA OWNERS) lodged with the Illinois Attorney General. Nothing here is estimated.
Why do the incident date and the report date differ?
Companies usually investigate before they report. The gap between the two dates shows how long that took.
What does the records-affected figure count?
It is the number the company gave the state. It can cover residents of that state only, so the national total may be higher.
Does this case file change over time?
Yes. When a company files an update or a new state publishes its copy of the report, the dates and counts here are refreshed.

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Illinois data breaches

Filing source: Illinois Attorney General