MalwareEducationEducationRansomwareData ExfiltratedSupply Chain (3P Vendor)Customer Data InvolvedData EncryptedGovernment IDIdentity (basic)HighContained

Metairie Park Country Day School

bd_0f91341326f8715d · schema v1 · pii pii-v1

Severity

High

Discovered

Oct 19, 2020

Filed

Nov 18, 2020

To disclose

4 weeks

Affected · nationwide

2,9202 in this filing

Linked

2 filings

Confidence

66%

Full breach record for Metairie Park Country Day School →

Metairie Park Country Day School reported a ransomware incident involving its third-party vendor, Blackbaud. The breach occurred between February 7, 2020, and May 20, 2020, and was discovered on October 19, 2020. The incident compromised the names and Social Security Numbers of 2,920 individuals, including 2 Maine residents. The school notified affected individuals in writing on November 18, 2020, and offered identity theft protection services.

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Maine clockDiscovered Oct 19, 2020 → Filed with AG Nov 18, 202030d ✓ ME AG ≤30d4 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 · 255 days

discovery → filing · 4 weeks / 30 days

Feb 7, 2020

Begins

Oct 19, 2020

Discovered

Nov 18, 2020

Filed

vs. sector median

4 wks faster

This filing is one of 2 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

Massachusetts State AGbd_bbeaf762ecf0ae162020-11-18Verified

Name: Metairie Park Country Day School
norm: metairie park country day school
Domain: mpcds.com
Industry: Education

Name: Metairie Park Country Day School
norm: metairie park country day school
Domain: mpcds.com
Industry: Education
Industry: Educationllm

Discovered: Oct 19, 2020
Breach occurred: Feb 7, 2020 – May 20, 2020
Undetected for: 255 daysoccurrence → discovery
Materiality determined: —
Notification sent: Nov 18, 2020
Affected individuals: 2,920state + nationwide
Data types: Government IDIdentity (basic)
Data elements: Social Security number
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1195 Supply Chain Compromise
Threat actor: ExternalFinancial
Regulator citations: Filed data breach notice with Maine Attorney General
Initial access: supply_chain

During the incident: Sent written notification to affected individuals
Offered identity theft protection services
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 4 weeks(30 days from discovery to filing)
Compliance flags: ME AG ≤30d · 30d
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: Oct 19, 2020
→ Filed with AG: Nov 18, 2020
30d 30 days ME AG ≤30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Oct 19, 2020 → Filed with AG: Nov 18, 2020	30d	30 days	ME AG ≤30d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings · 2 states

View merged incident ↗

Massachusetts State AGNov 18 · first

Maine State AGNov 18 · 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-a1252b4f8318/07378cb2-fafc-43bc-a0a5-e28b713ec242.shtml
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Nov 18, 2020
Raw hash: 2dd935f8367e9cdad73bf1f9f7ed46e4e7c7099b3992adb1e4f6ece5cddb25f9

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityMetairie Park Country Day School

Victim entityMetairie Park Country Day School

Incidentdiscovered Oct 19, 2020

Stated responseSent written notification to affected individuals

ComplianceME AG ≤30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov