MalwareEducationEducationRansomwareData EncryptedTargetedPIIIdentity (basic)MediumContained

Antioch University

bd_11e78d1f41e58ba3 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Aug 11, 2023

Filed

Jul 10, 2024

To disclose

48 weeks

Affected · nationwide

5,8598 in this filing

Linked

6 filings

Confidence

66%

Full breach record for Antioch University →2 incidents on file

Coalition for the Common Good dba Antioch University reported a ransomware attack occurring between August 8-11, 2023, discovered on August 11, 2023. The incident affected 5,859 individuals, including 8 Maine residents. The attacker gained access via valid credentials and encrypted data. Antioch restored systems from backups, changed credentials, and provided 12 months of credit monitoring to affected individuals. Notification was sent on July 10, 2024.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered Aug 11, 2023 → Filed with AG Jul 10, 2024334d ✗ ME AG >90d48 weeks discovery → filing

⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Incident timeline

undetected · 3 days

discovery → filing · 48 weeks / 334 days

Aug 8, 2023

Begins

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
Vermont State AGbd_5bac71a2b97f19c12024-07-10Verified
Indiana State AGbd_93b5291efc880dd02024-07-10Verified
Montana State AGbd_9a7047aeffedf6ef2024-07-10Verified

Show 1 more filing ↓

New Hampshire State AGbd_ba0e465e4d7cbb842024-07-10Verified

Name: Wilson, Elser, Moskowitz, Edelman & Dicker LLP
norm: wilson elser moskowitz edelman dicker
Domain: wilsonelser.com

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
Breach occurred: Aug 8, 2023 – Aug 11, 2023
Undetected for: 3 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jul 10, 2024
Affected individuals: 5,859state + nationwide
Data types: PIIIdentity (basic)
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1078 Valid Accounts
Threat actor: ExternalFinancial
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
Assist with securing our environment
Changes made: Securely restore our network from backups
Changed administrative credentials
Installed a new firewall
Upgraded our intrusion detection software
Engaged a cybersecurity firm to monitor our network activity
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 48 weeks(334 days from discovery to filing)
Compliance flags: ME AG >90d · 334dME resident >180d · 334dLeak >180d
Discovery-date grounding: unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: Aug 11, 2023
→ Filed with AG: Jul 10, 2024
334d 90 days ME AG >90d
Maine
Discovered: Aug 11, 2023
→ Notified: Jul 10, 2024
334d 180 days ME resident >180d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Aug 11, 2023 → Filed with AG: Jul 10, 2024	334d	90 days	ME AG >90d
Maine	Discovered: Aug 11, 2023 → Notified: Jul 10, 2024	334d	180 days	ME resident >180d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 6 filings · 6 states

View merged incident ↗

Washington 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

Maine 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://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/977c80bc-ce01-43c0-a853-6fda0765069c.html
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: c5fa385756f935f49566425b322afbdf22bf2bc402fc73ca2043db88ae9548a2

Linked disclosures

Regulatory filings (5) · sorted by filing gap

Reporting entityWilson, Elser, Moskowitz, Edelman & Dicker LLP

Victim entityAntioch University

Incidentdiscovered Aug 11, 2023

Stated responseDisconnected all access to the network

ComplianceME AG >90d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov