DisclosureLens
UnknownEducationEducationCustomer Data InvolvedPIIIdentity (basic)Government IDMedium

Southern Illinois University

bd_ec88770cadf75808 · schema v1 · pii pii-v2

Severity

Medium

Discovered

—

Filed

Aug 20, 2026

To disclose

—

Affected

Not disclosed

Linked

3 filings

Confidence

65%
Full breach record for Southern Illinois University →3 incidents on file

Southern Illinois University reported a data breach to the California Attorney General. The incident occurred on September 29, 2025. The notice indicates that personal information was compromised, potentially including names and Social Security numbers, given the offer of credit monitoring and advice on security freezes. The university established a toll-free response line and offered credit monitoring services to affected individuals. The specific attack vector and number of affected individuals were not disclosed in the provided text.

Incident timeline

Sep 29, 2025

Begins

Aug 20, 2026

Filed

This filing is one of 3 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

Filing propagation · 3 filings · 3 states

View merged incident ↗
Vermont State AGAug 20 · first
California State AGAug 20 · first · this page
Texas State AG+1d

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.