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Case file

Case File: Dartmouth College Data Breach

This file collects the dated facts on record for the Dartmouth College incident. The state report is dated November 24, 2025. The incident itself is dated August 9, 2025.

Timeline

107 days separate the incident date from the date it was reported.

  1. August 9, 2025Incident dateWhen the filing says the breach took place.
  2. November 24, 2025Report filed in CaliforniaDate the notice was lodged with the California Attorney General.

Case facts

Filing state
California
Date reported
November 24, 2025
Incident date
August 9, 2025
Receiving office
California Attorney General

Case notes

Dartmouth College has reported a data security incident to California regulatory bodies. The filing, dated November 24, 2025, confirms that the incident took place on August 9, 2025.

The specific nature of the breach, such as how it occurred, has not been detailed in the public record. Furthermore, the exact types of personal information involved in this incident remain unspecified. The number of individuals potentially affected by this event has also not been disclosed at this time.

According to the college's report, an investigation into the data security incident is currently underway. This process aims to determine the full scope and impact of the event.

Individuals who receive direct notification from Dartmouth College should carefully review the information provided for specific details relevant to their situation. In general, it is advisable to remain vigilant for any unusual activity in personal accounts, consider placing fraud alerts on credit files, and review account statements for unauthorized transactions. These are broadly recommended precautions following any data security event where personal information may have been compromised.

Questions about this case file

Where does the Dartmouth College case file come from?
Every entry is taken from the breach report Dartmouth College lodged with the California Attorney General. Nothing here is estimated.
Why do the incident date and the report date differ?
Companies usually investigate before they report. The gap between the two dates shows how long that took.
What does the records-affected figure count?
It is the number the company gave the state. It can cover residents of that state only, so the national total may be higher.
Does this case file change over time?
Yes. When a company files an update or a new state publishes its copy of the report, the dates and counts here are refreshed.
California data breaches

Filing source: California Attorney General