HackingEducationEducationVulnerability ExploitSupply Chain (3P Vendor)Zero-DayIdentity (basic)LowContained

Southern Illinois University

bd_261124b5e708a777 · schema v1 · pii pii-v1

Severity

Low

Discovered

Sep 25, 2023

Filed

Oct 25, 2023

To disclose

4 weeks

Affected

Not disclosed

Linked

8 filings

Confidence

66%

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

Southern Illinois University notified consumers of a data breach involving its third-party vendor, MOVEit Transfer. A zero-day vulnerability in MOVEit was exploited, leading to the removal of files containing names from SIU's network on May 29-30, 2023. SIU engaged third-party professionals to investigate and remediate the vulnerability. The university is offering complimentary credit monitoring services to affected individuals.

J jump to incidentP pin to compareR raw source

Leak gap clock⏱ Leak >90d4 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 · 4 weeks / 30 days

May 29, 2023

Begins

Sep 25, 2023

Discovered

Oct 25, 2023

Filed

vs. sector median

3 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 90 days.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Sitecl0pbd_e33e37db85c4c9f02023-07-26 · +90dCandidate

Regulatory filings (6) · sorted by filing gap

Maine State AGbd_2732dedcb0a5b7962023-10-25Verified
Massachusetts State AGbd_51bd76ada8e3afff2023-10-25Verified
Montana State AGbd_5d6f47343e13f5432023-10-25Verified
Indiana State AGbd_989eaf8d387964712023-10-24 · +1dCandidate

Show 2 more filings ↓up to 297d gap

New Hampshire State AGbd_a0d9e527bb389a032023-10-30 · +5dVerified
Illinois State AGbd_3b541ee6511b80462023-01-01 · +297dVerified 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 25, 2023
Affected individuals: Not disclosed
Data types: Identity (basic)
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1195 Supply Chain CompromiseT1190 Exploit Public-Facing Application
Threat actor: ExternalFinancial
Initial access: exploit_public_facing

During the incident: Engaged third party professionals to assist in the investigation and remediation of the vulnerability
Offering a complimentary membership of Experian IdentityWorks SM Credit 3B
Changes made: Review of ongoing third-party vendor relationships
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 4 weeks(30 days from discovery to filing)
Compliance flags: Leak >90dVT AG >14 bday
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

Maine State AG+297d

Massachusetts State AG+297d

Montana State AG+297d

Vermont State AG+297d · this page

New Hampshire State AG+302d

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://ago.vermont.gov/document/2023-10-25-southern-illinois-university-data-breach-notice-consumers
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 25, 2023
Raw hash: fcbdced4b8419be5f96a873b9274c523e24a534a03055b55d068deed2539fd8a

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 responseEngaged third party professionals to assist in the investigation and remediation of the vulnerability

ComplianceLeak >90d

Extraction provenanceno artifact recorded

Source provenanceago.vermont.gov