Bank3 Data Breach Lawsuit Investigation

Shamis & Gentile P.A., one of the nation's premier class action law firms specializing in data breach cases, is investigating the Bank3 data breach.

If you were affected by the data breach, your sensitive personally identifiable information may have been exposed, and you may be eligible for compensation.

About Bank3

Bank3 is a regional commercial bank headquartered in Memphis, Tennessee. The bank operates several branches across West Tennessee and DeSoto County, Mississippi.

Bank3 offers a variety of services, including personal checking and savings accounts, business banking solutions, and cash management tools. The bank also provides online and mobile banking options, aiming to balance personalized service with technological advancement.

What Happened?

Bank3 discovered suspicious activity on its computer network on Aug. 20, 2025. The bank secured its systems and launched an investigation with the help of third-party forensic specialists.

The investigation revealed that an unauthorized actor accessed Bank3’s systems at various times between July 25, 2025, and Aug. 7, 2025. During this period, sensitive information stored on those systems was viewed or copied by the unknown party.

A ransomware group known as Qilin claimed responsibility for the breach and posted about the incident on the dark web on Oct. 13, 2025. The group alleged it had obtained 149 GB of data, including personal and financial information for all clients, as well as internal financial data.

Bank3 completed a thorough review to determine what data was affected and notified impacted individuals by written notice on April 15, 2026. The company also notified federal law enforcement and relevant state regulators.

Information Exposed:

• Names
• Social Security numbers
• Dates of birth
• Driver’s license or state identification numbers
• Financial account information
• Payment card information
• Taxpayer identification numbers
• Health insurance information

You May Be Entitled to Compensation

If your personal information was exposed in the Bank3 data breach, you could be eligible for compensation. Lawyers are investigating claims on behalf of affected individuals and are ready to help you assert your rights.

To find out if you qualify and to join a potential lawsuit, complete the below form. This is the first step in seeking compensation and holding responsible parties accountable for the breach.

Sources

• Maine Attorney General
• Dark web