Minnesota Epilepsy Group Data Breach Class Action Lawsuit Investigation

Abington Cole + Ellery is investigating potential legal claims related to the Minnesota Epilepsy Group data breach, which affected a currently UNKNOWN number of individuals and may have exposed name, address, date of birth, and/or Social Security number.

Published June 5, 2026 | Last updated June 5, 2026
Reviewed by Cornelius P. Dukelow (licensed member of the Oklahoma Bar Association and a registered patent attorney).

What happened in the Minnesota Epilepsy Group data breach?

Minnesota Epilepsy Group, P.A. discovered on April 7, 2026 that an unauthorized third party may have accessed its computer network, after which it began an internal investigation, secured its systems, notified law enforcement, and hired a forensic security firm to help determine what happened. The investigation found that the unauthorized party had access to the network at various times between March 16, 2026, and April 10, 2026, and may have accessed or acquired certain files maintained by Minnesota Epilepsy Group. After reviewing the potentially affected files, the organization determined on May 18, 2026 that some personal information was involved, including affected individuals’ names, addresses, dates of birth, and Social Security numbers. Minnesota Epilepsy Group offered affected individuals two years of Experian IdentityWorks Credit 3B credit monitoring and identity protection services, along with guidance on monitoring accounts, obtaining credit reports, placing fraud alerts, and using credit freezes. Minnesota Epilepsy Group has also said it is enhancing technical security measures to reduce the risk of a similar incident in the future.

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How did the breach happen?

The Minnesota Epilepsy Group data breach was reportedly the result of an unauthorized third party accessing its computer network.

When did the breach occur?

The Minnesota Epilepsy Group data breach reportedly took place on or around between March 16, 2026, and April 10, 2026.

How many people were affected by the breach?

A currently UNDISCLOSED number of individuals were affected by the Minnesota Epilepsy Group data breach.

What information was exposed in the breach?

• Breached data reportedly may include, but is not necessarily limited to:
  • name
  • address
  • Social Security number
  • date of birth

Has Minnesota Epilepsy Group offered free credit monitoring and/or identity theft protection services?

Yes. As a result of the data breach, Minnesota Epilepsy Group is offering 24 months of free credit monitoring and/or identity theft protection services to some affected individuals.

Minnesota Epilepsy Group data breach timeline:

Date	Event
March 16, 2026	Unauthorized activity began.
April 7, 2026	Minnesota Epilepsy Group discovered the incident.
April 10, 2026	Unauthorized activity ended.
May 18, 2026	Data breach investigation concluded.
Early-June of 2026	Minnesota Epilepsy Group began notifying affected individuals.

Who is Minnesota Epilepsy Group?

Minnesota Epilepsy Group is a specialty medical practice focused on the diagnosis and treatment of epilepsy, seizures, and related neurological conditions in both children and adults. Based in Roseville, Minnesota, with additional outpatient locations listed in Hudson, Wisconsin, and Fargo, North Dakota, the group provides services such as outpatient evaluations, long-term EEG monitoring, neuropsychological and psychological care, surgical evaluation, research participation, and advanced diagnostic tools including magnetoencephalography. Its program is designated as a Level 4 epilepsy center, the highest level recognized by the National Association of Epilepsy Centers, and it works with hospital partners including Allina Health United Hospital and Children’s Minnesota.

What should affected individuals do?

Minnesota Epilepsy Group has advised victims to take advantage of the complimentary credit monitoring included in the notice letter, and also that they can find more information on steps to protect themselves against possible identity theft or fraud in the Additional Important Information sheet sent with the notice.

Minnesota Epilepsy Group Data Breach Notice

The notice describes the Minnesota Epilepsy Group data breach, including the type of information that may have been involved and the steps offered to affected individuals.

Open the Minnesota Epilepsy Group Data Breach Notice in a new tab.

Additional information about the breach:

Minnesota Epilepsy Group Website

For more information about steps you can take to possibly reduce the chances harm arising from a data breach, please review the following article: What are some steps you can take if you've been the victim of a data breach?

This website is not associated with nor authorized by Minnesota Epilepsy Group or any affiliated companies. If you have received any other data breach notifications, you may to review Abington Cole + Ellery's current list of data breach investigations.