MalwareEducationEducationRansomwareRansom DemandedData ExfiltratedSupply Chain (3P Vendor)Customer Data InvolvedIdentity (basic)Government IDMediumContained

Hathaway Brown School

bd_ad1fc6481ed333c2 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jul 16, 2020

Filed

Nov 24, 2020

To disclose

19 weeks

Affected

1state residents only

Linked

4 filings

Confidence

65%

Full breach record for Hathaway Brown School →2 incidents on file

Hathaway Brown School notified the New Hampshire Attorney General of a data incident involving third-party provider Blackbaud. A threat actor conducted an attempted ransomware attack and exfiltrated data between Feb 7 and May 20, 2020. One NH resident's name and SSN were potentially exposed. Blackbaud paid the ransom to ensure data destruction. Hathaway Brown engaged forensic experts, notified the resident, and provided 24 months of credit monitoring.

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Incident timeline

undetected · 160 days

discovery → filing · 19 weeks / 131 days

Feb 7, 2020

Begins

Jul 16, 2020

Discovered

Nov 24, 2020

Filed

vs. sector median

+10 wks slower

This filing is one of 4 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 (3) · sorted by filing gap

Massachusetts State AGbd_5a1cd288eec6de812020-11-19 · +5dVerified
Maine State AGbd_bdb4a74ef8adcb822020-11-19 · +5dCandidate
Indiana State AGbd_b8494d35a004ad772020-11-13 · +11dVerified

Name: MCDONALD HOPKINS LLC
norm: mcdonald hopkins

Name: Hathaway Brown School
norm: hathaway brown school
Industry: Educationllm

Discovered: Jul 16, 2020
Breach occurred: Feb 7, 2020 – May 20, 2020
Undetected for: 160 daysoccurrence → discovery
Materiality determined: —
Notification sent: Nov 13, 2020
Affected individuals: 1state-resident count only
Data types: Identity (basic)Government ID
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: Notified New Hampshire Attorney General
Third party: via Blackbaudservice provider
Initial access: exploit_public_facing

During the incident: Engaged outside experts experienced in handling these types of incidents
Initiated an internal investigation
Demanded detailed information from Blackbaud about the nature and scope of the incident
Provided the affected resident with written notification
Offered a complimentary two-year membership with a credit monitoring service
Advised the affected resident about the process for placing fraud alerts and/or security freezes
Changes made: Blackbaud closed the vulnerability that allowed the incident
Blackbaud is enhancing their security controls
Blackbaud is conducting ongoing efforts against incidents like this in the future
HB continually evaluates and modifies its practices, and those of its third party service providers, to enhance the security and privacy of personal information
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 19 weeks(131 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 4 states

View merged incident ↗

Indiana State AGNov 13 · first

Massachusetts State AG+6d

Maine State AG+6d

New Hampshire State AG+11d · this page

Pattern: first filing Nov 13 (IN), last Nov 24 (NH) — a 11-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/hathaway-brown-20201124.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Nov 24, 2020
Raw hash: 7dd2ce55d6f49cd27f8f47fb0248d4dcc7f496ef62419af13464077903827e2e

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityMCDONALD HOPKINS LLC

Victim entityHathaway Brown School

Incidentdiscovered Jul 16, 2020

Stated responseEngaged outside experts experienced in handling these types of incidents

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov