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Investigation OpenIndiana AG filing · March 16, 2026

Old National Bank Reports Data Security Incident in 2026 Filing

Old National Bank formally reported a data security incident in a March 2026 filing, indicating unauthorized access to its systems. This event potentially involved personal information held by the Indiana-based financial institution. The bank is notifying affected individuals about the incident and ongoing investigation.

State
Indiana
Breach date
August 14, 2025
Reported
March 16, 2026

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.

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.

Old National Bank breach filing: questions and answers

Is there a Old National Bank data breach class action lawsuit?
Law firms often open an investigation after a breach notice like this one, and a class action lawsuit may follow. This page doesn't confirm that a lawsuit has been filed against Old National Bank. You usually don't have to join a class action to be included — if a settlement is reached, class members are notified and can file a claim.
Is the Old National Bank data breach letter legit or a scam?
A notice from Old National Bank in the mail matches the breach Old National Bank reported to the Indiana Attorney General on March 16, 2026. Check that the company name and dates in your letter match that filing. A real notice of data security incident won't ask for your password, Social Security number or a payment — if it does, contact Old National Bank through a phone number or website you find yourself.
Can I sue Old National Bank over the data breach?
It depends on what was exposed, the law in Indiana and your own state, and whether you've been harmed. Most people take part through a class action rather than suing alone. Keep your notification letter — it's the proof that connects you to the breach.
How much could a Old National Bank data breach settlement or claim be worth?
There is no set amount, and no Old National Bank settlement is confirmed here. In past data breach settlements, payments depended on what data was exposed and on documented losses — fraud, out-of-pocket costs and time spent dealing with the breach. Keep receipts and records; they're what damages claims are built on.
Did Old National Bank offer free credit monitoring?
Any free monitoring Old National Bank is offering will be described in the notice you received, along with an activation code and a sign-up deadline. Enrolling does not give up your right to bring a claim.
Do I need a Old National Bank data breach lawyer or attorney?
An attorney can read your notice and tell you whether a claim makes sense. A case review here is free, and data breach cases are usually handled on contingency, so there is no upfront cost.
What should I do after getting the Old National Bank data breach notice?
Keep the letter and the envelope, and note the date it arrived. Freeze your credit with Equifax, Experian and TransUnion, change any passwords the notice mentions, and sign up for any free credit monitoring the letter offers. Then check whether you may have a claim.

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