HackingEducationEducationCustomer Data InvolvedDelayed DiscoveryIdentity (basic)Government IDPIIMedium

The Winsor School

bd_9720ce228d273fb5 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Dec 21, 2020

Filed

Feb 8, 2021

To disclose

7 weeks

Affected · nationwide

8238 in this filing

Confidence

65%

Full breach record for The Winsor School →

The Winsor School, an educational institution, experienced an external system breach (hacking) that occurred between February 7, 2020, and May 20, 2020. The breach was discovered on December 21, 2020. The incident affected 823 individuals, compromising their names and Social Security numbers. Affected individuals were notified on January 27, 2021, and offered 24 months of complimentary credit monitoring services through Cyberscout.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered Dec 21, 2020 → Filed with AG Feb 8, 202149d ⏱ ME AG >30d7 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 · 318 days

discovery → filing · 7 weeks / 49 days

Feb 7, 2020

Begins

Dec 21, 2020

Discovered

Feb 8, 2021

Filed

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed823 affectedView incident

Name: MCDONALD HOPKINS LLC
norm: mcdonald hopkins

Name: The Winsor School
norm: the winsor school
Industry: Educationllm

Discovered: Dec 21, 2020
Breach occurred: Feb 7, 2020 – May 20, 2020
Undetected for: 318 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jan 27, 2021
Affected individuals: 823state + nationwide
Data types: Identity (basic)Government IDPII
Data elements: Social Security number
Attack vector: Unauthorized Access

During the incident: Provided written notification to affected individuals
Offered identity theft protection services
Changes made: Offered complimentary 24-monht credit monitoring through Cyberscout
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 7 weeks(49 days from discovery to filing)
Compliance flags: ME AG >30d · 49d
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: Dec 21, 2020
→ Filed with AG: Feb 8, 2021
49d 30 days (soft) ME AG >30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Dec 21, 2020 → Filed with AG: Feb 8, 2021	49d	30 days (soft)	ME AG >30d

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://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/e832cb11-24a1-4782-a59c-20058ec1e5a4.shtml
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Feb 8, 2021
Raw hash: a9d65a3753a085b7dda667b2389a7672f2dae01ee0dae52d18a63b9dfc00b1fb

Reporting entityMCDONALD HOPKINS LLC

Victim entityThe Winsor School

Incidentdiscovered Dec 21, 2020

Stated responseProvided written notification to affected individuals

ComplianceME AG >30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov