HackingEducationEducationCustomer Data InvolvedDelayed DiscoveryPIIMediumResolved

Grumman Hill Montessori Association, Inc.

bd_814468149d33a31c · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jun 25, 2025

Filed

Jul 24, 2025

To disclose

29 days

Affected · nationwide

1,2666 in this filing

Linked

3 filings

Confidence

86%

Full breach record for Grumman Hill Montessori Association, Inc. →

Grumman Hill Montessori Association, Inc. DBA Seven Acres Montessori (an education organization in Wilton, NC) reported an external system breach (hacking) that occurred on October 3, 2024 but was not discovered until June 25, 2025 — nearly 9 months later. A total of 1,266 individuals were affected, including 6 Maine residents. Written notifications were sent on July 24, 2025. Twelve months of credit and identity monitoring services were offered to affected individuals.

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Maine clockDiscovered Jun 25, 2025 → Filed with AG Jul 24, 202529d ✓ ME AG ≤30d29 days discovery → filing

⚠ AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

undetected · 265 days

discovery → filing · 29 days

Oct 3, 2024

Begins

Jun 25, 2025

Discovered

Jul 24, 2025

Filed

vs. sector median

4 wks faster

This filing is one of 3 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

New Hampshire State AGbd_424e1cac515cb6a32025-07-24Candidate
Massachusetts State AGbd_ccc75d22069212b52025-07-24Verified

Name: Grumman Hill Montessori Association, Inc.
norm: grumman hill montessori

Name: Grumman Hill Montessori Association, Inc.
norm: grumman hill montessori
Also named: Grumman Hill Montessori Association, Inc.dba oflegal entity
Seven Acres Montessoridba oftrade name
Industry: Educationllm

Discovered: Jun 25, 2025
Breach occurred: Oct 3, 2024
Undetected for: 265 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jul 24, 2025
Affected individuals: 1,266state + nationwide
Data types: PII
Attack vector: Unauthorized Access
Threat actor: External

During the incident: Written notification sent to affected individuals
12 Months of credit and identity monitoring services offered
Changes made: 12 Months credit and identity monitoring services provided
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 29 days(29 days from discovery to filing)
Compliance flags: ME AG ≤30d · 29d
Discovery-date grounding: AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: Jun 25, 2025
→ Filed with AG: Jul 24, 2025
29d 30 days ME AG ≤30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Jun 25, 2025 → Filed with AG: Jul 24, 2025	29d	30 days	ME AG ≤30d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

New Hampshire State AGJul 24 · first

Massachusetts State AGJul 24 · first

Maine State AGJul 24 · first · this page

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://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/7bf71ebe-4363-4c61-9ad7-697f214ee1de.html
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jul 24, 2025
Raw hash: 742faa73d081628dffe222ba524d5ab3f1279b9556b6b955b844348530f077a7

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityGrumman Hill Montessori Association, Inc.

Victim entityGrumman Hill Montessori Association, Inc.

Incidentdiscovered Jun 25, 2025

Stated responseWritten notification sent to affected individuals

ComplianceME AG ≤30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov