MalwareEducationEducationRansomwareSupply Chain (3P Vendor)Data ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDHighContained

Wilmington Friends School

bd_dfd1f158118b6afc · schema v1 · pii pii-v1

Severity

High

Discovered

Sep 29, 2020

Filed

Nov 30, 2020

To disclose

9 weeks

Affected

1,907state residents only

Linked

5 filings

Confidence

66%

Full breach record for Wilmington Friends School →

Wilmington Friends School (WFS) disclosed a ransomware incident involving its third-party vendor, Blackbaud. An unknown actor accessed Blackbaud systems in May 2020, exfiltrating data before being locked out on May 20, 2020. WFS was notified on September 29, 2020, and determined that Delaware residents' names, Social Security numbers, and tax identification numbers were accessible. WFS notified approximately 1,907 Delaware residents starting November 30, 2020, offering 24 months of credit monitoring.

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Incident timeline

undetected · 151 days

discovery → filing · 9 weeks / 62 days

May 1, 2020

Begins

Sep 29, 2020

Discovered

Nov 30, 2020

Filed

vs. sector median

+2 wks slower

This filing is one of 5 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 (4) · sorted by filing gap

Massachusetts State AGbd_562c870c4048b6612020-11-30Verified
Maine State AGbd_6f3eaa1ad7a595142020-11-30Candidate
Indiana State AGbd_9394df4efa1a2e232020-11-30Verified
New Hampshire State AGbd_cbc407523a3b5aa32020-12-07 · +7dVerified

Name: Wilmington Friends School
norm: wilmington friends school

Name: Wilmington Friends School
norm: wilmington friends school
Industry: Educationllm

Discovered: Sep 29, 2020
Breach occurred: May 1, 2020 – May 20, 2020
Undetected for: 151 daysoccurrence → discovery
Materiality determined: —
Notification sent: Nov 30, 2020
Affected individuals: 1,907state-resident count only
Data types: Identity (basic)Government ID
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: Notified relevant regulatory authorities
Initial access: exploit_public_facing

During the incident: Blackbaud reported the incident to law enforcement
Blackbaud worked with forensic investigators
WFS commenced an investigation
WFS notified potentially affected individuals
WFS is notifying relevant regulatory authorities
WFS provided complimentary credit monitoring and identity protection services for 24 months through CyberScout
Changes made: Reviewing existing policies and procedures regarding third-party vendors
Working with Blackbaud to evaluate additional measures and safeguards
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 9 weeks(62 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 5 states

View merged incident ↗

Massachusetts State AGNov 30 · first

Maine State AGNov 30 · first

Indiana State AGNov 30 · first

Delaware State AGNov 30 · first · this page

New Hampshire State AG+7d

Pattern: first filing Nov 30 (MA), last Dec 7 (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://attorneygeneral.delaware.gov/wp-content/uploads/sites/50/2020/12/Exhibit-1-Wilmington-Friends-School-DE.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Nov 30, 2020
Raw hash: 80da8e2192b34c733260619906429a9e608723f03470575e3c21d30aaf3e83e1

Linked disclosures

Regulatory filings (4) · sorted by filing gap

Reporting entityWilmington Friends School

Victim entityWilmington Friends School

Incidentdiscovered Sep 29, 2020

Stated responseBlackbaud reported the incident to law enforcement

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenanceattorneygeneral.delaware.gov