MalwareEducationEducationRansomwareSupply Chain (3P Vendor)Data ExfiltratedData EncryptedCustomer Data InvolvedGovernment IDIdentity (basic)MediumContained

The Madeira School, Inc.

bd_bde816de167ab130 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jul 16, 2020

Filed

Dec 11, 2020

To disclose

21 weeks

Affected

1state residents only

Linked

3 filings

Confidence

66%

Full breach record for The Madeira School, Inc. →2 incidents on file

Madeira School notified NH AG of a data event involving third-party vendor Blackbaud. Blackbaud experienced a ransomware incident in May 2020, resulting in data encryption and exfiltration. One New Hampshire resident's name and Social Security Number were potentially exposed. The School provided 24 months of credit monitoring and notified the NH AG on December 4, 2020.

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Incident timeline

undetected · 76 days

discovery → filing · 21 weeks / 148 days

May 1, 2020

Begins

Jul 16, 2020

Discovered

Dec 11, 2020

Filed

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

Part of BLACKBAUD, INC. supply-chain incident (2020) — a supply-chain cascade affecting multiple organizations.View cascade →

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

Maine State AGbd_4b583120e6f354092020-12-04 · +7dCandidate
Massachusetts State AGbd_740292f8ac2957882020-12-04 · +7dVerified

Name: Mullen Coughlin LLC
norm: mullen coughlin

Name: The Madeira School, Inc.
norm: the madeira school
Domain: madeira.org
Industry: Educationllm

Discovered: Jul 16, 2020
Breach occurred: May 1, 2020 – May 20, 2020
Undetected for: 76 daysoccurrence → discovery
Materiality determined: —
Notification sent: Dec 4, 2020
Affected individuals: 1state-resident count only
Data types: Government IDIdentity (basic)
Data elements: Social Security number
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: Notified New Hampshire Attorney General's Office
Third party: via Blackbaud
Initial access: supply_chain

During the incident: Notified potentially affected individuals
Providing access to credit monitoring services for 24 months to individuals whose personal information was potentially affected by this incident, at no cost to these individuals
Providing impacted individuals with guidance on how to better protect against identity theft and fraud
Providing individuals with information on how to place a fraud alert and security freeze on one's credit file
Providing contact details for the national consumer reporting agencies
Providing information on how to obtain a free credit report
Encouraging individuals to contact the Federal Trade Commission, their state Attorney General, and law enforcement
Changes made: Reviewing its procedures with third-party vendors, including Blackbaud
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 21 weeks(148 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

Maine State AGDec 4 · first

Massachusetts State AGDec 4 · first

New Hampshire State AG+7d · this page

Pattern: first filing Dec 4 (ME), last Dec 11 (NH) — a 7-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/madeira-school-20201211.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 11, 2020
Raw hash: f8e3cc97b86995272eda047d4c13e8c8975a48096afe133ab2bacbced1bd6da7

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityMullen Coughlin LLC

Victim entityThe Madeira School, Inc.

Incidentdiscovered Jul 16, 2020

Stated responseNotified potentially affected individuals

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov