Old National Bank Data Breach in Indiana: What Victims Should Know
Old National Bank in Indiana reported a data security incident where unauthorized access to its systems in August 2025 may have exposed customer personal information. If you received a notification, your data could be at risk, and it's important to understand your options.
This breach is real, not a scam. Old National Bank (see 2025 Report for Marquis Software Solutions) officially reported it to the Indiana Attorney General on March 16, 2026.
Reviewed by David S. Harris, Esq., data breach and class action attorney (Florida Bar No. 0112739). Free consultation: 786-306-7278
Received a Old National Bank (see 2025 Report for Marquis Software Solutions) notification letter? Find out in minutes if you qualify for compensation.
Free case review- State
- Indiana
- Breach date
- August 14, 2025
- Reported
- March 16, 2026
If you recently received a data breach notification letter from Old National Bank, you are likely wondering what this means for you. The bank, which offers various financial services, confirmed a data security incident impacting its systems in Indiana. This notice indicates that some of your personal information may have been compromised.
The incident, which Old National Bank reported in March 2026, stemmed from unauthorized access to its systems on or around August 14, 2025. While the specific nature of the breach is still under investigation, it involved an external party gaining access to the sensitive data the bank holds.
Given the types of information financial institutions manage, any unauthorized access carries significant risks. The exposure of your personal information could potentially lead to various forms of identity theft, fraud, or other malicious activities. It is wise to remain vigilant and take proactive steps to protect yourself.
We advise you to carefully read your notification letter for any specific guidance provided by Old National Bank. Regularly monitor your financial statements and credit reports for any suspicious activity. Consider placing a fraud alert or freezing your credit with the major credit bureaus.
Dealing with a data breach can be complex and stressful, especially when it involves an institution you trust with your personal information. Our dedicated legal team focuses on representing consumers affected by such incidents. We work to ensure companies are held accountable and victims receive justice for the exposure of their data.
If you are among those affected by the Old National Bank data breach, our team offers free case reviews to discuss your specific situation. We can help you understand your legal rights and explore potential avenues for recourse, operating on a contingency basis, meaning you pay nothing upfront unless we recover for you.
Received the Old National Bank (see 2025 Report for Marquis Software Solutions) notification letter? The Old National Bank (see 2025 Report for Marquis Software Solutions) case file tracks this filing.
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 data breach lawyer, lawsuit and letter questions
- Do I need a Old National Bank data breach lawyer or attorney?
- You don't need to pay to find out. Our data breach attorneys review notices like this one for free, and data breach cases are usually handled on contingency — no fee unless money is recovered for you.
- 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.
- 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.
- 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.
- 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.
- 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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