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

Darlington School

bd_a98354f22640f239 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jul 16, 2020

Filed

Jan 7, 2021

To disclose

25 weeks

Affected

3state residents only

Confidence

66%

Full breach record for Darlington School →3 incidents on file

Darlington School notified the New Hampshire Attorney General of a data event involving its third-party vendor, Blackbaud. Blackbaud experienced a ransomware attack in May 2020, resulting in data encryption and exfiltration. The breach potentially exposed names, Social Security numbers, and financial account information for 3 New Hampshire residents. Darlington School provided 24 months of identity monitoring services to affected individuals.

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Incident timeline

undetected · 76 days

discovery → filing · 25 weeks / 175 days

May 1, 2020

Begins

Jul 16, 2020

Discovered

Jan 7, 2021

Filed

vs. sector median

+17 wks slower

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

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed3 affectedView incident

Name: Mullen Coughlin LLC
norm: mullen coughlin

Name: Darlington School
norm: darlington school
Domain: darlingtonschool.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 30, 2020
Affected individuals: 3state-resident count only
Data types: Government IDIdentity (basic)Financial account
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 ChannelT1195 Supply Chain Compromise
Threat actor: ExternalFinancial
Regulator citations: Notified Office of the New Hampshire Attorney General
Initial access: supply_chain

During the incident: Received notification from third-party vendor Blackbaud
Commenced an investigation to understand the nature and scope of the incident
Gathered further information from Blackbaud
Confirmed the population of individuals whose information was potentially subject to unauthorized acquisition
Provided notice to potentially affected individuals
Provided access to identity monitoring services for 24 months through CyberScout or Epiq
Provided guidance on how to better protect against identity theft and fraud
Provided contact details for national consumer reporting agencies
Provided information on how to obtain a free credit report
Changes made: Reviewing existing policies and procedures regarding third-party vendors
Working with Blackbaud to evaluate additional measures and safeguards to protect against this type of incident in the future
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 25 weeks(175 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

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://mm.nh.gov/files/uploads/doj/remote-docs/darlington-school-20210107.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jan 7, 2021
Raw hash: 469dfface668a08214dbf723d64745e0fbbd7235c27a909ba101d1208319f993

Reporting entityMullen Coughlin LLC

Victim entityDarlington School

Incidentdiscovered Jul 16, 2020

Stated responseReceived notification from third-party vendor Blackbaud

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov