Stark Bancshares dba Grand Missouri Bank Reports 2025 Data Breach in Indiana
Stark Bancshares, operating as Grand Missouri Bank, filed notice of a data security incident with Indiana authorities in December 2025. This event, which occurred in October 2025, involved unauthorized access to systems containing personal information. Individuals who received notification letters should carefully review their personal accounts and records for any unusual activity.
- State
- IN
- Breach date
- October 21, 2025
- Reported
- December 30, 2025
Stark Bancshares, operating as Grand Missouri Bank, formally reported a data security incident to Indiana regulators on December 30, 2025. The company's filing indicates that the breach occurred on October 21, 2025.
According to the public record, the specific type of breach and the precise categories of personal information involved were not detailed. The filing noted that an investigation into the incident is currently underway, suggesting that the company is working to understand the full scope of the unauthorized access.
For individuals who may be affected, it is important to pay close attention to any direct notifications received from Grand Missouri Bank. These official communications are the primary source for understanding how the incident might specifically impact them and will often include tailored advice or resources.
As a general precaution, it is advisable to regularly review financial account statements and credit reports for any suspicious transactions or inquiries. Placing a fraud alert with credit bureaus can add an extra layer of protection by requiring businesses to verify identity before extending new credit.
This information is derived from public filings with regulatory bodies. For the most accurate and personalized details regarding this event, individuals should refer directly to any breach notification letters issued by Stark Bancshares dba Grand Missouri Bank.
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.
What to know about the Stark Bancshares dba Grand Missouri Bank data breach
- Where can I see the official Stark Bancshares dba Grand Missouri Bank breach notice?
- Stark Bancshares dba Grand Missouri Bank's report is published by the IN Attorney General: https://www.in.gov/attorneygeneral/consumer-protection-division/id-theft-prevention/security-breaches/#stark-bancshares-dba-grand-missouri-bank-2025 Compare it with the letter you received to confirm the dates and details match.
- What should I do after getting the Stark Bancshares dba Grand Missouri 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.
- Is the Stark Bancshares dba Grand Missouri Bank data breach letter legit or a scam?
- A notice from Stark Bancshares dba Grand Missouri Bank in the mail matches the breach Stark Bancshares dba Grand Missouri Bank reported to the IN Attorney General on December 30, 2025. 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 Stark Bancshares dba Grand Missouri Bank through a phone number or website you find yourself.
- Did Stark Bancshares dba Grand Missouri Bank offer free credit monitoring?
- Any free monitoring Stark Bancshares dba Grand Missouri 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.
- Can I sue Stark Bancshares dba Grand Missouri Bank over the data breach?
- It depends on what was exposed, the law in IN 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 Stark Bancshares dba Grand Missouri 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 Stark Bancshares dba Grand Missouri 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.
- How much could a Stark Bancshares dba Grand Missouri Bank data breach settlement or claim be worth?
- There is no set amount, and no Stark Bancshares dba Grand Missouri 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.
- Do I need a Stark Bancshares dba Grand Missouri 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.
Source: IN Attorney General filing
Related data breach cases
- Bozeman School DistrictIndiana
- Bozeman School District
- Teamsters Local 17Indiana
- Teamsters Local 17
- BankIndiana
- Bank
- PeoplesBankIndiana
- McKenzie Creative BrandsIndiana
- MEBS Global ReachIndiana
- Midvale Indemnity and American Family Connect Insurance CompanyIndiana
- American Motorcyclist AssociationIndiana
- Nishiyamato AcademyIndiana
- Deer Management Co. LLC dba Bessemer Venture PartnersIndiana
- World Acceptance CorporationIndiana