Stark Bancshares (Grand Missouri Bank) Data Breach Incident 2025

Stark Bancshares, doing business as Grand Missouri Bank, officially reported a data breach to the Indiana Attorney General. This incident, impacting customer information, was reported on December 30, 2025, concerning an event that took place on October 21, 2025. The company is currently investigating the full scope of the breach.

The filing from the financial institution confirms that a data security incident occurred. While specific details regarding the breach type were not disclosed in the public record, it resulted in the potential exposure of personal information.

The public filing does not specify the exact categories of personal information that may have been compromised in this incident. It is important to refer to any direct notification received from Stark Bancshares dba Grand Missouri Bank for precise details about the information involved.

The number of individuals affected by this data security incident was not disclosed in the official public filing. If you received a formal notification letter from Grand Missouri Bank, it indicates that your personal information was potentially involved.

Recipients of a breach notification letter from Grand Missouri Bank should carefully read the communication. This letter should outline the specific nature of the incident, the information involved, and any identity protection services offered. It is generally advisable to remain vigilant against phishing attempts and unauthorized activity on your accounts.

Consider placing a fraud alert or security freeze on your credit reports with the three major credit bureaus (Equifax, Experian, and TransUnion) as a precaution. Regularly review your financial statements and credit reports for any suspicious activity.