HackingEducationEducationStolen CredentialsCustomer Data InvolvedTargetedIdentity (basic)Government IDMediumContained

Cheshire Academy

bd_053653e2b3f48a12 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Feb 17, 2025

Filed

Apr 24, 2025

To disclose

9 weeks

Affected · nationwide

2822 in this filing

Linked

3 filings

Confidence

66%

Full breach record for Cheshire Academy →

Cheshire Academy, an educational institution in Connecticut, reported an external system breach (hacking) affecting 282 individuals, including 2 Maine residents. Unauthorized access to an employee email account occurred around September 13, 2024, and was discovered on February 17, 2025. Personal information, including names, SSNs, and driver's license numbers, was potentially accessed. Notices were sent on April 24, 2025, and credit monitoring was offered.

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Maine clockDiscovered Feb 17, 2025 → Filed with AG Apr 24, 202566d ⏱ ME AG >30d9 weeks discovery → filing

⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Incident timeline

undetected · 157 days

discovery → filing · 9 weeks / 66 days

Sep 13, 2024

Begins

Feb 17, 2025

Discovered

Apr 24, 2025

Filed

vs. sector median

1 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

Indiana State AGbd_1cf628c92fef58842025-04-24Verified
Massachusetts State AGbd_2070769b1455b08d2025-04-25 · +1dVerified

Name: Constangy, Brooks, Smith & Prophete, LLP
norm: constangy brooks smith prophete

Name: Cheshire Academy
norm: cheshire academy
Industry: Educationllm

Discovered: Feb 17, 2025
Breach occurred: Sep 13, 2024
Undetected for: 157 daysoccurrence → discovery
Materiality determined: —
Notification sent: Apr 24, 2025
Affected individuals: 282state + nationwide
Data types: Identity (basic)Government ID
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1114 Email Collection
Threat actor: External
Regulator citations: Notified Maine Attorney General
Initial access: valid_credentials

During the incident: Took steps to secure its email environment
Engaged digital forensics specialists to assist with the investigation
Conducted a comprehensive review of the potentially affected data
Provided written notice to affected individuals
Provided access to credit monitoring services through Experian
Changes made: Implemented additional safeguards and training
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 9 weeks(66 days from discovery to filing)
Compliance flags: ME AG >30d · 66d
Discovery-date grounding: unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: Feb 17, 2025
→ Filed with AG: Apr 24, 2025
66d 30 days (soft) ME AG >30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Feb 17, 2025 → Filed with AG: Apr 24, 2025	66d	30 days (soft)	ME AG >30d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

Indiana State AGApr 24 · first

Maine State AGApr 24 · first · this page

Massachusetts State AG+1d

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/eb9bd734-fba3-4ade-bc4d-929a4a01d909.html
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 24, 2025
Raw hash: 363eadd9885c3436b2429f6b225e6803f65a186920a527a298e1164d70c0662c

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityConstangy, Brooks, Smith & Prophete, LLP

Victim entityCheshire Academy

Incidentdiscovered Feb 17, 2025

Stated responseTook steps to secure its email environment

ComplianceME AG >30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov