MalwareEducationEducationRansomwareData ExfiltratedRansom DemandedCustomer Data InvolvedIdentity (basic)Government IDMediumContained

Antioch University

bd_ba0e465e4d7cbb84 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Aug 11, 2023

Filed

Jul 10, 2024

To disclose

48 weeks

Affected

17state residents only

Linked

6 filings

Confidence

67%

Full breach record for Antioch University →2 incidents on file

Antioch University reported a ransomware attack detected on August 11, 2023. The incident affected 17 New Hampshire residents, with unauthorized access to personal information including government IDs and names. Antioch engaged forensic investigators, restored systems from backups, and enhanced security controls. Notifications were mailed on July 10, 2024, offering credit monitoring.

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Leak gap clock✗ Leak >180d48 weeks discovery → filing

Incident timeline

discovery → filing · 48 weeks / 334 days

Aug 11, 2023

Discovered

Jul 10, 2024

Filed

vs. sector median

+38 wks slower

This filing is one of 6 about the same incident.View merged incident

A leak claim by lockbit_3 about this victim predates this filing by 313 days.View originating leak claim

Linked disclosures

Why this link?

Regulatory filings (5) · sorted by filing gap

Washington State AGbd_0d2f355cbd0063642024-07-10Candidate
Maine State AGbd_11e78d1f41e58ba32024-07-10Verified
Vermont State AGbd_5bac71a2b97f19c12024-07-10Verified
Indiana State AGbd_93b5291efc880dd02024-07-10Verified

Show 1 more filing ↓

Montana State AGbd_9a7047aeffedf6ef2024-07-10Verified

Name: Antioch University
norm: antioch university
Domain: antioch.edu

Name: Antioch University
norm: antioch university
Domain: antioch.edu
Also named: Coalition for the Common Gooddba oflegal entity
Antioch Universitydba oftrade name
Industry: Educationllm

Discovered: Aug 11, 2023
Materiality determined: —
Notification sent: Jul 10, 2024
Affected individuals: 17state-resident count only
Data types: Identity (basic)Government ID
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1078 Valid Accounts
Threat actor: ExternalFinancial
Regulator citations: Notified New Hampshire Office of the Attorney General
Initial access: valid_credentials

During the incident: Disconnected all access to the network
Engaged legal counsel and specialized cybersecurity professionals to conduct a forensic investigation
Engaged specialized cybersecurity professionals to conduct a forensic investigation
Securely restore its network from backups
Changed administrative credentials
Installed a new firewall
Upgraded its intrusion detection software
Engaged a cybersecurity firm to monitor its network activity
Mailed personalized notification letters
Offered complimentary credit monitoring and identity theft protection services
Changes made: Changed administrative credentials
Installed a new firewall
Upgraded its intrusion detection software
Engaged a cybersecurity firm to monitor its network activity
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 48 weeks(334 days from discovery to filing)
Compliance flags: Leak >180d
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 6 filings · 6 states

View merged incident ↗

Washington State AGJul 10 · first

Maine State AGJul 10 · first

Vermont State AGJul 10 · first

Indiana State AGJul 10 · first

Montana State AGJul 10 · first

New Hampshire State AGJul 10 · first · this page

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/coalition-common-good-antioch-university-20240710.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jul 10, 2024
Raw hash: 9737fe4fe87d1a956e8f138235c667ae44933ad08e268fafc23525eb864d0a7a

Linked disclosures

Regulatory filings (5) · sorted by filing gap

Reporting entityAntioch University

Victim entityAntioch University

Incidentdiscovered Aug 11, 2023

Stated responseDisconnected all access to the network

ComplianceLeak >180d

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov