✅ Official notice on file. Dartmouth College filed this data breach notice with the California Attorney General on Nov 24, 2025. Compare it with the letter you received: the official copy is linked below.
Dartmouth College reported a data breach caused by unauthorized access to its computer network. The information involved includes Social Security number, financial account / bank info.
Key facts
| Unauthorized access | Aug 9, 2025 – Aug 12, 2025 |
|---|---|
| Discovered | Oct 30, 2025 |
| Incident type | Network intrusion |
| Data exposed | Social Security number, Financial account / bank info |
| Letter sent | Nov 24, 2025 |
| Reported to California AG | Nov 24, 2025 |
| Company helpline | 1-800-374-9811 |
Free credit monitoring
Dartmouth College is offering 12 months of Experian IdentityWorks at no cost to people who received the letter. Enroll at www.experianidworks.com/3bplus using the activation code printed on your letter.
What to do now
- Freeze your credit for free at Equifax, Experian and TransUnion, and request an IRS Identity Protection PIN at irs.gov to block fraudulent tax returns in your name.
- Call your bank, ask about extra monitoring or a new account number, and review statements for small unknown charges.
- Get your free credit reports at AnnualCreditReport.com and look for accounts you do not recognize.
- Call the Dartmouth College helpline at 1-800-374-9811 if you have questions about your letter.
Timeline
- Aug 9, 2025 — Unauthorized access begins
- Oct 30, 2025 — Dartmouth College discovers the incident
- Nov 24, 2025 — Notification letters sent
- Nov 24, 2025 — Breach reported to the California Attorney General
Other recent data breaches
- Inner City Education Foundation data breach
- Nishiyamato Academy data breach
- Merced Union High School District data breach
- Lincoln Technical Institute data breach
- Monmouth University data breach
Source: notification letter and filing submitted by Dartmouth College to the California Attorney General. BreachLetter is not affiliated with Dartmouth College. Details extracted from the official letter; always follow the instructions in your own copy.