$3.75M Chattanooga Heart Institute Settlement Ends Class Action Lawsuit Over 2023 Cyberattack

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Memorial Heart Institute, which does business as The Chattanooga Heart Institute, has agreed to a $3,750,000 settlement to resolve a class action lawsuit that alleged the cardiovascular care center failed to protect the sensitive information stored on its systems from a March 2023 cyberattack.

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The $3.75 million Chattanooga Heart Institute class action settlement received preliminary approval from the court on March 12, 2026. The settlement covers all living individuals whose private information may have been accessed or accessible during the March 2023 data breach.

Court documents state that the private information of approximately 460,000 people may have been compromised in the Chattanooga Heart Institute data breach. A subset of approximately 287,000 people had their Social Security numbers exposed in the incident, settlement documents state.

The court-approved website for the Chattanooga Heart Institute data breach settlement can be found at ChattanoogaHeartSettlement.com.

According to the website, Chattanooga Heart settlement class members who file a valid, timely claim form can receive up to $5,500 for documented losses stemming from the Chattanooga Heart data breach.

This benefit covers unreimbursed expenses related to identity theft, fraud, falsified tax returns, and misuse of a class member’s personal information. The payment also covers costs incurred after March 16, 2023 to obtain credit reports, credit monitoring and identity theft insurance; freeze and/or unfreeze credit; and expenses for notaries, faxes, postage, travel and phone charges.

Class members must submit proof, such as receipts or bank statements, to receive a documented-loss payment.

Per the settlement website, class members whose Social Security numbers may have been exposed in the data breach can file a claim form for an additional equal-share cash payment.

In addition to monetary settlement benefits, all class members may claim two free years of Medical Data Monitoring, which includes dark web and credit monitoring.

To file a Chattanooga Heart Institute settlement claim form online, class members can head to this page and log in using the class member ID found on their copy of the settlement notice.

Alternatively, class members can download a PDF of the claim form to print, fill out and return by mail to the address of the settlement administrator at the top of the form. Separate claim forms are available depending on whether a class member’s Social Security number was involved in the incident.

All Chattanooga Heart settlement claim forms must be submitted online or by mail by July 13, 2026.

The court will determine whether to grant final approval to the Chattanooga Heart Institute data breach settlement following a hearing on May 28, 2026. Compensation will begin to be distributed to class members only after final approval is granted and any appeals are resolved.

The Chattanooga Heart Institute class action lawsuit claimed that the Tennessee-based cardiovascular healthcare center failed to implement reasonable cybersecurity measures to protect the personal information of current and former patients and employees, resulting in a data breach between March 8, 2023 and March 16, 2023.

Per court documents, private information that may have been exposed during the breach included names, contact information, dates of birth, driver's license numbers, account information, health insurance information, medical history, demographic information, financial information, and, for some individuals, Social Security numbers.

Did you know that some class action settlements require no proof to submit a claim? Check out the latest class action settlements.