MalwareEducationEducationRansomwareData ExfiltratedData EncryptedSupply Chain (3P Vendor)Customer Data InvolvedIdentity (basic)Government IDMediumContained

Delbarton School

bd_03d2898a8bf35552 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jul 16, 2020

Filed

Dec 16, 2020

To disclose

22 weeks

Affected

60state residents only

Linked

2 filings

Confidence

66%

Full breach record for Delbarton School →2 incidents on file

Delbarton School notified the New Hampshire Attorney General of a data security incident involving third-party provider Blackbaud, Inc. A ransomware attack occurred in May 2020, leading to the exposure of personal information. Approximately 60 New Hampshire residents were affected, with data including names, addresses, SSNs, and donor history. Notifications were mailed on December 11, 2020, offering 24 months of credit monitoring.

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Incident timeline

undetected · 76 days

discovery → filing · 22 weeks / 153 days

May 1, 2020

Begins

Jul 16, 2020

Discovered

Dec 16, 2020

Filed

vs. sector median

+13 wks slower

This filing is one of 2 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 (1) · sorted by filing gap

Maine State AGbd_061f71f80b5ca7762020-12-11 · +5dCandidate

Name: Delbarton School
norm: delbarton school

Name: Delbarton School
norm: delbarton school
Industry: Educationllm

Discovered: Jul 16, 2020
Breach occurred: May 1, 2020
Undetected for: 76 daysoccurrence → discovery
Materiality determined: —
Notification sent: Dec 11, 2020
Affected individuals: 60state-resident count only
Data types: Identity (basic)Government ID
Data elements: Social Security numberDate of birth
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: Notified New Hampshire Attorney General Gordon J. MacDonald
Third party: via Blackbaud, Inc.
Initial access: exploit_public_facing

During the incident: Mailed incident notification letters to potentially affected New Hampshire residents on December 11, 2020
Offered complimentary identity theft and credit monitoring services for 24 months to individuals whose SSNs were exposed
Launched an investigation to determine which constituents were impacted
Continued investigation following Blackbaud's September 29, 2020 notification
Changes made: Blackbaud implemented changes to protect data from subsequent incidents
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 22 weeks(153 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings · 2 states

View merged incident ↗

Maine State AGDec 11 · first

New Hampshire State AG+5d · this page

Pattern: first filing Dec 11 (ME), last Dec 16 (NH) — a 5-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/wilson-elser-moskowitz-edelman-dicker-20201216.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 16, 2020
Raw hash: 433a8f1558d07b4415a4dab255c7a5a50ee0b51e1f3aeabd8152a1dc2574ee63

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityDelbarton School

Victim entityDelbarton School

Incidentdiscovered Jul 16, 2020

Stated responseMailed incident notification letters to potentially affected New Hampshire residents on December 11, 2020

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov