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Latest / California / August 2026

Southern Illinois University

Southern Illinois University notified California AG on Aug 20, 2026 of a data breach, which occurred on Sep 29, 2025. Data exposed: Tax ID / EIN / ITIN, Phone number, Postal address, Name.

All 5 filings by Southern Illinois University, state by state · Case file (dates, days to notice against the statute, what the letter offers, prior incidents)

Organization
Southern Illinois University
Source
California AG · source record
Date reported
Aug 20, 2026
Date(s) of breach
Monday, September 29, 2025
Residents affected
Not published by this source
Data exposed
Tax ID / EIN / ITIN Phone number Postal address Name
Notice letter
Sample notice (PDF)
Days to notice
325 days from the end of the breach window (Sep 29, 2025, no discovery date in the letter) to the California record (Aug 20, 2026). Statute: 30 days from discovery or notification of the breach (Cal. Civ. Code § 1798.82).
First seen by BreachTally
2026-10-30 15:26 UTC

Dates and counts as filed by the organization with the agency. The breach window and the report date often differ by months.

First seen by BreachTally at 15:26 UTC on Oct 30, 2026. New filings reach paid subscribers within 30 minutes of the agency posting, with the count, the data exposed and the letter. Start a 14-day free trial. We email you two days before the first charge and you cancel in one click.
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Other filings by Southern Illinois University

OrganizationSourceStateReportedResidents affectedData exposed
Southern Illinois University Massachusetts OCABR MA Aug 21, 2026 134 Social Security number
Southern Illinois University Texas AG TX Aug 21, 2026 1,597 Social Security numberPostal addressName
Southern Illinois University Vermont AG VT Aug 20, 2026 23 Social Security number
Southern Illinois University Washington AG WA Aug 20, 2026 552 Social Security numberName

Data reproduced from a public government filing. Spot an error? Email support@breachtally.com with the record link. Corrections are applied and noted.