Where does the Mastery Charter High School case file come from?

Every entry is taken from the breach report Mastery Charter High School lodged with the New Hampshire 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.

Case file

Case File: Mastery Charter High School Data Breach

This file collects the dated facts on record for the Mastery Charter High School incident. The state report is dated June 12, 2025.

Timeline

June 12, 2025Report filed in New HampshireDate the notice was lodged with the New Hampshire Attorney General.

Case facts

Filing state: New Hampshire
Date reported: June 12, 2025
Receiving office: New Hampshire Attorney General

Case notes

Mastery Charter High School in New Hampshire has formally reported a data breach incident to regulators, with the filing date recorded as June 12, 2025. Details surrounding the nature of the breach, including how it occurred, remain unspecified at this time, as the investigation is ongoing.

The public records indicate that the specific types of personal information compromised in this incident have not yet been determined or disclosed. Similarly, the exact number of individuals whose data may have been affected has not been specified in the available filings.

The breach date itself is also listed as unknown, suggesting that the school may be working to pinpoint when the unauthorized access or disclosure began. Further information is expected to emerge as the investigation progresses.

While specific details are pending, individuals who believe they may be connected to Mastery Charter High School should remain vigilant. It is always a good practice to review financial statements, credit reports, and account activity for any suspicious or unauthorized transactions.

Consider enabling multi-factor authentication on all online accounts and be wary of unsolicited communications, especially those asking for personal details. If you receive a direct notification from Mastery Charter High School, review it carefully for guidance on further protective steps.

Questions about this case file

Where does the Mastery Charter High School case file come from?: Every entry is taken from the breach report Mastery Charter High School lodged with the New Hampshire 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.

New Hampshire data breaches

Filing source: New Hampshire Attorney General

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Timeline

Case facts

Case notes

Questions about this case file

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