Social EngineeringEducationEducationPhishingData ExfiltratedCustomer Data InvolvedDelayed DiscoveryIdentity (basic)Government IDMediumContained

Greater Amsterdam School District

bd_aa04d2e514e096b9 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Feb 28, 2024

Filed

Sep 2, 2025

To disclose

18 months

Affected

1state residents only

Linked

5 filings

Confidence

65%

Full breach record for Greater Amsterdam School District →

Greater Amsterdam School District notified the NH Attorney General of a phishing incident affecting one NH resident. Unauthorized access to employee email accounts occurred between Nov 12, 2023, and Feb 28, 2024. The actor accessed full name and driver's license/state ID of one resident. GASD engaged forensic experts, contained the incident, and provided credit monitoring and fraud alert guidance to the affected individual.

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Incident timeline

undetected · 108 days

discovery → filing · 18 months / 552 days

Nov 12, 2023

Begins

Feb 28, 2024

Discovered

Sep 2, 2025

Filed

vs. sector median

+70 wks slower

This filing is one of 5 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (4) · sorted by filing gap

Massachusetts State AGbd_1fc1fb25fd05daaa2025-08-28 · +5dVerified
Maine State AGbd_bb1d6344f2bdccc72025-08-28 · +5dVerified
Indiana State AGbd_404cab907fdc51582025-08-27 · +6dVerified
Vermont State AGbd_d412db5228fb79092025-08-27 · +6dCandidate

Name: MCDONALD HOPKINS LLC
norm: mcdonald hopkins

Name: Greater Amsterdam School District
norm: greater amsterdam school district
Industry: Educationllm

Discovered: Feb 28, 2024
Breach occurred: Nov 12, 2023 – Feb 28, 2024
Undetected for: 108 daysoccurrence → discovery
Materiality determined: —
Notification sent: Aug 27, 2025
Affected individuals: 1state-resident count only
Data types: Identity (basic)Government ID
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing Link
Threat actor: External
Regulator citations: Notified New Hampshire Office of the Attorney General
Initial access: phishing_link

During the incident: Engaged leading cybersecurity experts to identify what personal information, if any, was involved
Engaged third-party forensic and legal experts to assist in the investigation
Sent a communication to our community on May 28, 2024
Provided written notification of this incident commencing on or about August 27, 2025
Provided credit monitoring to individuals whose Social Security number was potentially impacted
Changes made: Continually evaluates and modifies its practices to enhance the security and privacy of the personal information it maintains
Set up a dedicated, confidential toll-free response line
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 18 months(552 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 5 states

View merged incident ↗

Indiana State AGAug 27 · first

Vermont State AGAug 27 · first

Massachusetts State AG+1d

Maine State AG+1d

New Hampshire State AG+6d · this page

Pattern: first filing Aug 27 (IN), last Sep 2 (NH) — a 6-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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://mm.nh.gov/files/uploads/doj/remote-docs/greater-amsterdam-school-district-20250902.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 2, 2025
Raw hash: 8eca3892361174f0b3ce174a41f962eda3213243066495311dc3ed4eeff70e3f

Linked disclosures

Regulatory filings (4) · sorted by filing gap

Reporting entityMCDONALD HOPKINS LLC

Victim entityGreater Amsterdam School District

Incidentdiscovered Feb 28, 2024

Stated responseEngaged leading cybersecurity experts to identify what personal information, if any, was involved

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov