HackingEducationEducationStolen CredentialsCustomer Data InvolvedTargetedIdentity (basic)Government IDFinancial accountOtherHighContained

Montana State University

bd_1212c9fba279472a · schema v1 · pii pii-v1

Severity

High

Discovered

May 30, 2023

Filed

Jun 20, 2023

To disclose

21 days

Affected

26,793state residents only

Confidence

64%

Full breach record for Montana State University →4 incidents on file

Great Falls College Montana State University notified affected individuals of a data security incident where unauthorized access occurred between April 5 and April 21, 2023. The college identified compromised files containing names, driver's license numbers, SSNs, financial account numbers, and disability accommodation information on May 30, 2023. The college secured systems, alerted law enforcement, and offered one year of Experian IdentityWorks services.

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Incident timeline

undetected · 55 days

discovery → filing · 21 days

Apr 5, 2023

Begins

May 30, 2023

Discovered

Jun 20, 2023

Filed

vs. sector median

6 wks faster

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed26,793 affectedView incident

Name: Montana State University
norm: montana state university
Domain: montana.edu

Name: Montana State University
norm: montana state university
Domain: montana.edu
Industry: Educationllm

Discovered: May 30, 2023
Breach occurred: Apr 5, 2023 – Apr 21, 2023
Undetected for: 55 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jun 20, 2023
Affected individuals: 26,793state-resident count only
Data types: Identity (basic)Government IDFinancial accountOther
Data elements: Social Security number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1119 Automated Collection
Threat actor: External
Regulator citations: alerted law enforcement
Initial access: valid_credentials

During the incident: Secured the systems involved
Alerted law enforcement
Launched an investigation
Offering you complimentary identity theft protection services through a one-year membership with Experian® IdentityWorksSM Credit 3B
Changes made: Implemented additional safeguards and technical security measures to enhance the security of our network
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 21 days(21 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/OCP/Consumer-notification-letter-357.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jun 20, 2023
Raw hash: 470a35841913f7febceb29b202387ec6bc94f02ae68942f33ec9e944122c5185

Reporting entityMontana State University

Victim entityMontana State University

Incidentdiscovered May 30, 2023

Stated responseSecured the systems involved

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov