MalwareEducationEducationRansomwareData MishandlingSupply Chain (3P Vendor)Data ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDMediumContained

The Lexington School

bd_4d43394db535031c · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jul 16, 2020

Filed

Oct 5, 2020

To disclose

12 weeks

Affected

1state residents only

Confidence

66%

Full breach record for The Lexington School →

The Lexington School notified the NH AG of a third-party data event involving vendor Blackbaud. Blackbaud experienced a ransomware incident in May 2020. Lexington discovered the potential impact on July 16, 2020. One NH resident's name and SSN were potentially exposed. Lexington provided 12 months of credit monitoring via Kroll.

J jump to incidentP pin to compareR raw source

Incident timeline

undetected · 76 days

discovery → filing · 12 weeks / 81 days

May 1, 2020

Begins

Jul 16, 2020

Discovered

Oct 5, 2020

Filed

vs. sector median

+3 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.Confirmed1 affectedView incident

Name: Mullen Coughlin LLC
norm: mullen coughlin

Name: The Lexington School
norm: the lexington school
Industry: Educationllm

Discovered: Jul 16, 2020
Breach occurred: May 1, 2020 – May 20, 2020
Undetected for: 76 daysoccurrence → discovery
Materiality determined: —
Notification sent: Sep 28, 2020
Affected individuals: 1state-resident count only
Data types: Identity (basic)Government ID
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1078 Valid AccountsT1195 Supply Chain Compromise
Threat actor: ExternalFinancial
Regulator citations: Notified Office of the New Hampshire Attorney General
Initial access: supply_chain

During the incident: Commenced an investigation to better understand the nature and scope of the incident
Gathered information from Blackbaud to understand the scope of the incident
Undertook an investigation to determine what information may have been present in the system
Provided written notice of this incident to affected individuals
Coordination with Blackbaud to confirm what information may have been affected
Providing potentially impacted individuals access to credit monitoring services for 12 months through Kroll
Providing individuals with guidance on how to better protect against identity theft and fraud
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: 12 weeks(81 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/lexington-school-20201005.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 5, 2020
Raw hash: 1f7464c2b64b0088a12fcada7737512bc64a4b8e80d389c059f07a62af088cef

Reporting entityMullen Coughlin LLC

Victim entityThe Lexington School

Incidentdiscovered Jul 16, 2020

Stated responseCommenced an investigation to better understand the nature and scope of the incident

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov