HackingEducationEducationVulnerability ExploitStolen CredentialsZero-DaySupply Chain (3P Vendor)Data ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDMediumContained

Southern Illinois University

bd_a0d9e527bb389a03 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Sep 25, 2023

Filed

Oct 30, 2023

To disclose

5 weeks

Affected

22state residents only

Linked

8 filings

Confidence

66%

Full breach record for Southern Illinois University →3 incidents on file

Southern Illinois University notified the NH AG of a third-party data breach involving a zero-day vulnerability in the MOVEit Transfer solution. Unauthorized access occurred May 29-30, 2023, discovered Sept 25, 2023. 22 NH residents affected; data included names and SSNs. Notifications sent Oct 24, 2023.

J jump to incidentP pin to compareR raw source

Leak gap clock⏱ Leak >90d5 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 · 119 days

discovery → filing · 5 weeks / 35 days

May 29, 2023

Begins

Sep 25, 2023

Discovered

Oct 30, 2023

Filed

vs. sector median

2 wks faster

This filing is one of 8 about the same incident.View merged incident

A leak claim by cl0p about this victim predates this filing by 95 days.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Sitecl0pbd_e33e37db85c4c9f02023-07-26 · +95dCandidate

Regulatory filings (6) · sorted by filing gap

Vermont State AGbd_261124b5e708a7772023-10-25 · +5dVerified
Maine State AGbd_2732dedcb0a5b7962023-10-25 · +5dVerified
Massachusetts State AGbd_51bd76ada8e3afff2023-10-25 · +5dVerified
Montana State AGbd_5d6f47343e13f5432023-10-25 · +5dVerified

Show 2 more filings ↓up to 302d gap

Indiana State AGbd_989eaf8d387964712023-10-24 · +6dCandidate
Illinois State AGbd_3b541ee6511b80462023-01-01 · +302dVerified by operator

Name: Southern Illinois University
norm: southern illinois university

Name: Southern Illinois University
norm: southern illinois university
Industry: Educationllm

Discovered: Sep 25, 2023
Breach occurred: May 29, 2023 – May 30, 2023
Undetected for: 119 daysoccurrence → discovery
Materiality determined: —
Notification sent: Oct 24, 2023
Affected individuals: 22state-resident count only
Data types: Identity (basic)Government ID
Data elements: Social Security number
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1195 Supply Chain CompromiseT1190 Exploit Public-Facing ApplicationT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: Notified New Hampshire Attorney General
Initial access: supply_chain

During the incident: Contained the incident through patches
Commenced a prompt and thorough investigation in consultation with external forensic investigators and data privacy professionals
Engaged third party professionals to assist in the investigation and remediation of the vulnerability
Provided affected residents with written notification
Provided complimentary one-year memberships with a credit monitoring service
Changes made: Review of ongoing third-party vendor relationships
Continually evaluates and modifies practices and internal controls to enhance the security and privacy of personal information
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 5 weeks(35 days from discovery to filing)
Compliance flags: Leak >90d
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.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 7 filings · 7 states

View merged incident ↗

Illinois State AGJan 1 · first

Indiana State AG+296d

Vermont State AG+297d

Maine State AG+297d

Massachusetts State AG+297d

Montana State AG+297d

New Hampshire State AG+302d · this page

Pattern: first filing Jan 1 (IL), last Oct 30 (NH) — a 302-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/southern-illinois-university-20231030.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 30, 2023
Raw hash: adb788f3dff67734856521d18e9c8108678715e08b64595145319b12564813e6

Linked disclosures

Ransomware claims (1)

Regulatory filings (6) · sorted by filing gap

Reporting entitySouthern Illinois University

Victim entitySouthern Illinois University

Incidentdiscovered Sep 25, 2023

Stated responseContained the incident through patches

ComplianceLeak >90d

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov