A Settlement has been reached with Idaho National Laboratory ("INL" or "Defendant") in a class action lawsuit. This case is about the targeted cyberattack on INL's computer systems that occurred in December 2023 (the "Data Incident"). Certain files that contained private information were accessed. These files may have contained personal information such as full names; Social Security numbers ("SSNs"); dates of birth; and medical treatment and health insurance information.
The lawsuit is called Dallimore v. Idaho National Laboratory operated by Battelle Energy Alliance, LLC, Case No. CV10-25-0742. It is pending in the District Court for Bonneville County, Idaho (the "Litigation"). INL denies that it did anything wrong, and the Court has not decided who is right. The parties have agreed to settle the lawsuit (the "Settlement") to avoid the costs and risks, disruptions, and uncertainties of continuing the Litigation.
If you received notice, then INL's records indicate that you are a Class Member and entitled to benefits under the Settlement. You may have received a previous notice directly from INL.
Your rights are affected whether you act or don't act.
Summary of Your Legal Rights and Options in this Settlement | Deadline | |
Submit a Claim | The only way to receive benefits from this Settlement is by submitting a valid and timely Claim Form. The fastest way to submit your Claim Form is online here. If you prefer, you can download the Claim Form here and mail it to the Settlement Administrator. | February 28, 2026 |
Opt Out of the Settlement | You can choose to opt out of the Settlement and receive no benefit or payment. This option allows you to sue, continue to sue, or be part of another lawsuit against the Defendants related to the legal claims resolved by this Settlement. You can hire your own lawyer at your own expense. | January 29, 2026 |
Object to the Settlement and/or Attend a Hearing | If you do not opt out of the Settlement, you may object to it by writing to the Court about why you don't like the Settlement. You may also ask the Court for permission to speak about your objection at the Final Approval Hearing. If you object, you may also file a claim for Settlement benefits. | January 29, 2026 |
Do Nothing | Unless you opt out of the Settlement, you are automatically part of the Settlement. If you do nothing, you will not receive benefits from this Settlement and you will give up the right to sue, continue to sue, or be part of another lawsuit against the Defendants related to the legal claims resolved by this Settlement. | No Deadline |
These rights and options—and the deadlines to exercise them—are explained in the Notice and FAQs page.
The Court in charge of this case still has to decide whether to approve the Settlement.
Upcoming Important Dates
Notification Mailing
11/26/2025
Objection Deadline
1/29/2026
Opt Out Deadline
1/29/2026
Claim Deadline
2/28/2026
Final Approval Hearing
3/19/2026 at 9:00 a.m. (MST)