Understanding your Old National Bank (see 2025 Report for Marquis Software Solutions) data breach notification letter
If a Old National Bank (see 2025 Report for Marquis Software Solutions) letter arrived in your mailbox, here is what it means, why you received it, and the free steps you can take right now.
Why you received this letter
Old National Bank recently announced a data breach that exposed personal information, affecting individuals in Indiana. The incident, which occurred on August 14, 2025, is currently under investigation, leaving many wondering about the security of their data. This situation highlights the importance of understanding your rights and how to safeguard your personal details after such an event.
What to do after the letter
Confirm the notice is genuine
A legitimate Old National Bank (see 2025 Report for Marquis Software Solutions) notice references the specific incident reported to the IN Attorney General and describes which categories of your information were involved. Compare the letter against the public filing before acting on any links or phone numbers it contains.
Keep the letter — it is your proof of connection
The notification letter is the document that ties your personal information to this incident. Keep the original and photograph it. If you later request a case review, this letter is the strongest evidence that you were among the affected individuals.
Protect your accounts and credit
Depending on what was exposed, consider a free credit freeze with all three bureaus, new passwords for reused credentials, and monitoring of financial statements. These steps are free and do not require you to wait for anyone's permission.
Find out whether you have a claim
Whether the Old National Bank (see 2025 Report for Marquis Software Solutions) breach gives you a legal claim depends on the facts. A free, no-obligation case review will tell you where you stand — there is no cost and no commitment to find out.
This page summarizes a data breach reported to the IN Attorney General for informational purposes and is attorney advertising. It does not create an attorney-client relationship. DataBreachLegalTeam.com does not provide legal advice through this page.