MalwareEducationEducationRansomwareSupply Chain (3P Vendor)Data ExfiltratedData EncryptedCustomer Data InvolvedIdentity (basic)Government IDFinancial accountMediumContained

St. Hilda's & St. Hugh's School

bd_25fb1997a83b70d6 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jul 16, 2020

Filed

Dec 16, 2020

To disclose

22 weeks

Affected

1state residents only

Confidence

65%

Full breach record for St. Hilda's & St. Hugh's School →

St. Hilda’s & St. Hugh’s School notified individuals of a third-party vendor (Blackbaud) ransomware incident. The attack occurred in May 2020. Data potentially exposed included names and Social Security numbers. The school offered 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

+15 wks slower

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed1 affectedView incident

Name: St. Hilda's & St. Hugh's School
norm: st hilda s st hugh s school

Name: St. Hilda's & St. Hugh's School
norm: st hilda s st hugh s school
Industry: Educationllm

Discovered: Jul 16, 2020
Breach occurred: May 1, 2020 – May 20, 2020
Undetected for: 76 daysoccurrence → discovery
Materiality determined: —
Notification sent: Nov 9, 2020
Affected individuals: 1state-resident count only
Data types: Identity (basic)Government IDFinancial account
Data elements: Social Security number
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: Notifying state regulators, as required

During the incident: Commenced an investigation to better understand the incident and any impact on SHSH data
Working diligently to gather further information from Blackbaud
Reviewed information and records for the purposes of notifying individuals
Offering access to credit monitoring services through CyberScout for twenty-four (24) months at no cost
Changes made: Reviewing existing procedures regarding third-party vendors
Blackbaud confirmed it will be removing this historical unencrypted SHSH information from its network
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.

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://dojmt.gov/wp-content/uploads/hildaSamp.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: 760c03ffa293721d29f58cc7941824a18bcb808eaece094d2339a427c4969c8a

Reporting entitySt. Hilda's & St. Hugh's School

Victim entitySt. Hilda's & St. Hugh's School

Incidentdiscovered Jul 16, 2020

Stated responseCommenced an investigation to better understand the incident and any impact on SHSH data

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov