Dartmouth College Data Breach Lawsuit Investigation
On November 24, 2025, Dartmouth College began mailing letters to individuals whose personal information was taken during an August 2025 cybersecurity incident. If you received a notice, you may be entitled to free identity-protection services and possible legal remedies. Use the resources below to understand the breach and learn how to assert your rights.
Key Facts at a Glance
- Organization: Dartmouth College
- Industry: Higher Education
- Incident Window: August 9 – August 12, 2025
- Notice Date: November 24, 2025
- Individuals Affected: 1,956 (Texas filing)
- Data Exposed: Names, Social Security numbers, and financial information (e.g., bank account or credit/debit card numbers)
- Credit Monitoring Offered: Complimentary one-year Experian IdentityWorks membership
What Happened?
Dartmouth College (Dartmouth College) determined that an unauthorized actor exploited a previously unknown “zero-day” vulnerability within Oracle’s eBusiness Suite (EBS) software that the college uses to manage operations. The vulnerability allowed the actor to remove data from multiple Oracle EBS customers, including Dartmouth, between August 9 and August 12, 2025.
After discovering the incident, Dartmouth immediately secured its environment, notified law enforcement, and launched a forensic investigation. On October 30, 2025, investigators confirmed that certain compromised files contained personally identifiable information.
Information Involved
The files reviewed by Dartmouth College contained the following data elements:
- Name
- Social Security number
- Financial account information (e.g., bank account, credit or debit card number)
No other data types were referenced in the official notices.
Response Measures
Dartmouth has implemented all publicly available Oracle EBS patches issued after the incident and stated that it will continue to evaluate the security practices of its vendors. Impacted individuals are being offered a complimentary one-year subscription to Experian IdentityWorks, which includes identity-theft detection and resolution support.
How to Activate Your Experian IdentityWorks Membership
- Locate your unique activation code inside the mailed breach letter.
- Visit ExperianIDWorks.com/restoration.
- Enter the code and follow the on-screen instructions.
- Activation assistance is available at 833-918-1123.
Important Dates & Timeline
- August 9 – 12, 2025: Unauthorized data extraction occurs.
- October 30, 2025: Dartmouth identifies files with sensitive information.
- November 24, 2025: Consumer notifications mailed and filed with various state Attorneys General, including Texas.
Next Steps for Affected Individuals
- Enroll in the complimentary Experian IdentityWorks membership as soon as possible.
- Review credit reports for unfamiliar accounts or activity.
- Consider placing a fraud alert or credit freeze with the nationwide credit bureaus.
- Monitor all statements and insurance explanations of benefits for suspicious transactions.
- Contact Dartmouth’s assistance line at 1-800-374-9811 (Mon–Fri, 8 a.m.–5 p.m. ET) with additional questions.
Company Overview
Founded in 1769, Dartmouth College is a private Ivy League research university headquartered in Hanover, New Hampshire.
- Website: home.dartmouth.edu
- Headquarters: Hanover, NH 03755, United States
- Industry: Higher Education
- Year Founded: 1769
- Official Social Channels:
Frequently Asked Questions
I received a data breach letter from Dartmouth College — what should I do?
Follow the instructions in the letter to activate your complimentary Experian IdentityWorks membership, review your credit reports, and contact Dartmouth’s assistance line (1-800-374-9811) with any questions.
How do I submit a claim related to the Dartmouth College data breach?
No lawsuit or settlement has been announced. However, you may consult a data-privacy attorney to discuss potential claims based on the exposure of your personal information.
Am I eligible to join a lawsuit against Dartmouth College?
Eligibility will depend on factors such as the type of information exposed and any losses incurred. Retain your breach notice and proof of activation of credit monitoring in case litigation is filed.
What information did the Dartmouth College breach expose?
The incident involved names, Social Security numbers, and certain financial account information such as bank-account or credit/debit card numbers.
Did Dartmouth College offer credit monitoring, and for how long?
Yes. The college arranged a complimentary one-year subscription to Experian IdentityWorks for impacted individuals.
How many people were affected by the Dartmouth College breach?
A filing with the Texas Attorney General lists 1,956 affected individuals. Earlier notices, such as Maine’s, did not specify a total.
How can I get the official breach notice (PDF) for Dartmouth College?
You can download it directly from the Maine or Vermont Attorney General’s websites using the links above or by clicking the “Download Official Breach Notice (PDF)” or “Download Vermont Breach Notice (PDF)” buttons in this article.
Attorney Advertising. Prior results do not guarantee a similar outcome.