Old National Bank (see 2025 Report for Marquis Software Solutions) data breach

Clerk's notes

Old National Bank has acknowledged a data security incident stemming from August 14, 2025. The Indiana-based financial institution formally reported this event to regulators on March 16, 2026. This timeline indicates a period of internal review before public disclosure.

The specific nature of the breach and the types of personal information involved have not been detailed in public filings. However, any compromise of your data can carry risks, from identity theft to unauthorized access of accounts. The investigation into this incident remains ongoing.

Individuals who receive a formal notification from Old National Bank regarding this incident should carefully read the letter for specific details provided directly by the bank. It is important to understand what the bank advises you to do and if any protective services are being offered.

To safeguard your interests, it is generally recommended to monitor financial accounts and credit reports for any suspicious activity. This proactive approach helps in detecting and responding to potential misuse of your information swiftly. Always be cautious of unsolicited communications that claim to be from Old National Bank.

If you have received a data breach notification letter related to the Old National Bank incident, understanding your legal options can be important. Individuals affected by this breach may be entitled to a case review to discuss potential recourse. You can explore a free case review to learn more about your situation and rights.

If a notification letter about this breach reached you, see every IN data breach on file or browse all cases.