HackingEducationEducationStolen CredentialsCustomer Data InvolvedEmployee Data InvolvedIdentity (basic)Government IDFinancial accountPHIHealth (basic)MediumContained

Hinsdale School District

bd_6df46b5b87cbe51c · schema v1 · pii pii-v1

Severity

Medium

Discovered

May 28, 2024

Filed

May 28, 2024

To disclose

≤1 day

Affected

Not disclosed

Confidence

68%

Full breach record for Hinsdale School District →2 incidents on file

Hinsdale School District notified consumers of a data breach involving unauthorized access to personal information. Affected data includes names, addresses, dates of birth, Social Security numbers, financial account numbers, and medical/health insurance information. The District offered 12 months of credit monitoring and established a toll-free response line.

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Leak gap clock⏱ Leak >90d≤1 day discovery → filing

⚠ notification dateThe stored discovery date equals the NOTIFICATION date, collapsing the clock to ~zero. This UNDERSTATES the delay and can mask a real violation.

Incident timeline

discovery → filing · ≤1 day / 0 days

May 28, 2024

Discovered

May 28, 2024

Filed

vs. sector median

9 wks faster

Tracked as a single-filing incident — the only disclosure on record for this event so far.ConfirmedView incident

A leak claim by medusa about this victim predates this filing by 168 days.View originating leak claim

Name: Hinsdale School District
norm: hinsdale school district
Domain: hinsdale.k12.nh.us

Name: Hinsdale School District
norm: hinsdale school district
Domain: hinsdale.k12.nh.us
Industry: Educationllm

Discovered: May 28, 2024
Materiality determined: —
Notification sent: May 28, 2024
Affected individuals: Not disclosed
Data types: Identity (basic)Government IDFinancial accountPHIHealth (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: ExternalFinancial
Regulator citations: Filed notice with the Office of the Vermont Attorney General
Initial access: valid_credentials

During the incident: Offering 12 months of complimentary credit monitoring through Experian IdentityWorks
Established a dedicated and confidential toll-free response line
Changes made: Continually evaluate and modify practices to enhance the security and privacy of personal information
Source: Quoted from the filing itself, not independently verified.

Time to disclose: ≤1 day(0 days from discovery to filing)
Compliance flags: Leak >90dVT AG ≤14 bday
Discovery-date grounding: notification dateThe stored discovery date equals the NOTIFICATION date, collapsing the clock to ~zero. This UNDERSTATES the delay and can mask a real violation.

Status: No extraction artifact recorded for this disclosure.

Evidence ladder

Leak-site claim

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filingThis record

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.

Source URL: https://ago.vermont.gov/document/2024-05-28-hinsdale-school-district-data-breach-notice-consumers
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 28, 2024
Raw hash: c27929875b7b2562ee215d6da2f189a2973f9180c1881e9f2956d068a475fd7a

Reporting entityHinsdale School District

Victim entityHinsdale School District

Incidentdiscovered May 28, 2024

Stated responseOffering 12 months of complimentary credit monitoring through Experian IdentityWorks

ComplianceLeak >90d

Extraction provenanceno artifact recorded

Source provenanceago.vermont.gov