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Case File: Old National Bank (see 2025 Report for Marquis Software Solutions) Data Breach

This file collects the dated facts on record for the Old National Bank (see 2025 Report for Marquis Software Solutions) incident. The state report is dated March 16, 2026. The incident itself is dated August 14, 2025.

Timeline

214 days separate the incident date from the date it was reported.

  1. August 14, 2025Incident dateWhen the filing says the breach took place.
  2. March 16, 2026Report filed in IndianaDate the notice was lodged with the Indiana Attorney General.

Case facts

Filing state
Indiana
Date reported
March 16, 2026
Incident date
August 14, 2025
Receiving office
Indiana Attorney General

Case notes

Old National Bank, a financial institution based in Indiana, officially reported a data security incident on March 16, 2026, according to public filings. This notification concerns unauthorized access to systems maintained by the bank.

The bank stated that the incident involved personal information under its care. While specific categories of data were not detailed in the public record, individuals who received a direct notification letter should review its contents for details pertinent to their situation.

The breach date was identified as August 14, 2025. Old National Bank indicated that an investigation into the scope and nature of this security event is currently underway as of the filing date.

For those who have been notified, it is generally recommended to remain vigilant for suspicious activity. Review account statements, monitor credit reports for any unauthorized activity, and consider placing a fraud alert or credit freeze with major credit bureaus as a precautionary measure.

Such notifications are issued to ensure individuals are aware that their information may have been involved in a security event and to provide guidance on protective steps.

Questions about this case file

Where does the Old National Bank (see 2025 Report for Marquis Software Solutions) case file come from?
Every entry is taken from the breach report Old National Bank (see 2025 Report for Marquis Software Solutions) lodged with the Indiana 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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