MalwareRansomwareCapture Stored DataData ExfiltratedData EncryptedCustomer Data InvolvedIDENTITY_BASICLowContained
Mastery Charter High School
bd_e77dfb9a7798647d · schema v1 · pii pii-v1
Full breach record for Mastery Charter High School →Mastery Charter High School notified the NH AG of a September 15, 2024 ransomware incident affecting 5 NH residents. Malicious encryption and data downloads occurred. Response included system shutdown, law enforcement notification, and MFA expansion. Affected data: names. Free credit monitoring offered.
This filing is one of 4 about the same incident.View merged incident
Linked disclosures
Why this link?Regulatory filings (3) · sorted by filing gap
- bd_557cf3225408f29aIndiana State AGfiled 2025-06-06(6d gap)Verified
- bd_ac760a429f740ea3Vermont State AGfiled 2025-06-06(6d gap)Verified
- bd_d445c07723535b6bMaine State AGfiled 2025-06-06(6d gap)Candidate
Source provenance
- Source URL
- https://mm.nh.gov/files/uploads/doj/remote-docs/mastery-charter-high-school-20250612.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
- Filed at
- Jun 12, 2025
- Raw hash
- 99b18bcd246a1fb7c7fc5bdd483807515ea769665c584343e2baf60bf320833d
Reporting entity
- Name
- Mastery Charter High Schoolnorm: mastery charter high school
Victim entity
- Name
- Mastery Charter High Schoolnorm: mastery charter high school
Incident
- Discovered
- Sep 15, 2024
- Materiality determined
- —
- Notification sent
- Jun 6, 2025
- Affected individuals
- 5
- Data types
- IDENTITY_BASIC
- Attack vector
- Ransomware
- MITRE ATT&CK
- T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 Channel
- Threat actor
- ExternalFinancial
- Regulator citations
- Reporting this Incident to relevant government agencies
Compliance
- Time to disclose
- 39 weeks(270 days from discovery to filing)
- Compliance flags
- — (clock not assessable for this source)
Extraction provenance
- Status
- No extraction artifact recorded for this disclosure.