Bison State Bank recently reported a data breach that occurred between April 17, 2025, and June 30, 2025, involving unauthorized access to a single email account. Although there is no evidence that the information has been misused, affected individuals may be entitled to compensation through a class action lawsuit. The bank is offering complimentary credit monitoring services to those impacted.
Bison State Bank’s Data Breach Investigation
Bison State Bank became aware of an unauthorized actor accessing one of its email accounts between April 17, 2025, and June 30, 2025. Upon discovering this breach, the bank immediately secured its network and initiated a thorough investigation in partnership with external cybersecurity professionals. The investigation revealed that the email account in question contained a limited amount of personal information that may have been accessed by the unauthorized party.
On January 6, 2026, after conducting a detailed review of the affected files, Bison State Bank determined that the impacted data may have included personal information belonging to certain individuals, including full names and other variable data elements. While the investigation could not confirm the misuse of this information, Bison State Bank has made efforts to notify all potentially affected individuals and offer resources to help protect their personal data.
In response to the breach, Bison State Bank has worked to enhance its security measures, ensuring that such incidents do not happen again. The bank has also provided a comprehensive solution for those affected, including complimentary credit monitoring services for up to 12 to 24 months, as a precautionary measure to help protect against potential identity theft and fraud.
When Did This Breach Occur?
The data breach occurred between April 17, 2025, and June 30, 2025, with Bison State Bank discovering the breach on or around exact discovery date. The impacted individuals were notified via mail on January 6, 2026.
What Information Was Breached?
The information potentially compromised in the Bison State Bank data breach includes:
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Full names
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Social Security numbers
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Addresses
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Phone numbers
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Email addresses, etc.
Due to the limited scope of the breach, not all impacted individuals may have had all of the above-listed data compromised.
What You Can Do
If you were affected by this data breach, there are several steps you can take to protect yourself:
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Sign Up for Free Credit Monitoring: Bison State Bank is offering up to 12-24 months of complimentary Single Bureau Credit Monitoring and identity theft protection services through IDX, a company specializing in fraud assistance and remediation. Enroll by visiting the provided link or scanning the QR code in your notification letter.
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Monitor Your Financial Accounts: Regularly check your bank and credit card statements for any suspicious transactions or unauthorized activity.
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Place a Fraud Alert: Contact one of the three major credit bureaus (Equifax, Experian, or TransUnion) to place a fraud alert on your credit report. This will notify creditors to take additional steps to verify your identity.
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Consider a Credit Freeze: You may also choose to freeze your credit, preventing unauthorized individuals from opening new accounts in your name.
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Be Cautious of Phishing Scams: Be aware of any unsolicited communications that may try to trick you into providing personal information. Always verify the source before sharing sensitive data.
In addition to these steps, Bison State Bank has made resources available through IDX to help those affected navigate any potential fraud or identity theft issues.
File a Data Breach Lawsuit Against Bison State Bank
If you received a notification regarding this data breach or believe your personal information was affected, you may be entitled to compensation through a class action lawsuit. Although no evidence of misuse has been reported, the exposure of sensitive personal information remains a serious concern.
By joining a class action lawsuit, you can take collective action to hold Bison State Bank accountable and potentially receive compensation for any distress, financial losses, or inconvenience caused by the breach.
Contact Class Action U today to learn more about your legal options. Fill out our quick, easy, and secure form to speak with a lawyer and explore whether you have a case. There’s no obligation or cost to reach out, and we are here to guide you through the process.