Southern Illinois University data breach
Southern Illinois University appears in 6 breach notices filed with Texas AG, California AG, Washington AG, Vermont AG, Maryland AG and Montana DOJ, most recently reported on August 21, 2026.
Breach notices filed with regulators
| Reported | Filed with | Breach date(s) | People affected | Data involved | Source |
|---|---|---|---|---|---|
| Aug 21, 2026 | Texas AG | Sep 29, 2025 | 1,597 Texas residents | Name of individualAddressSocial Security Number Information | Texas AG list ↗ |
| Aug 20, 2026 | California AG | Sep 29, 2025 | Not listed | Not listed | Notice ↗ |
| Aug 20, 2026 | Washington AG | Jul 10, 2025 – Aug 16, 2025 | 552 Washington residents | NameSocial Security NumberStudent ID Number | Washington AG list ↗ |
| Aug 20, 2026 | Vermont AG | Not listed | 23 Vermont residents | Social Security Numbers | Vermont AG list ↗ |
| Oct 30, 2023 | Maryland AG | Not listed | 96 Maryland residents | NameSocial Security numberPassport numberFinancial account information | Notice ↗ |
| Oct 25, 2023 | Montana DOJ | May 30, 2023 – May 31, 2023 | 21 Montana residents | Not listed | Notice ↗ |
Each row is a notice as published by the agency. For state lists, the number affected counts only that state's residents; HHS lists the total reported. SEC rows are Form 8-K Item 1.05 filings, which usually don't give a count. A notice does not mean a settlement exists, and a settlement may cover a different incident than a given notice.
Is there a settlement?
We don't track an open class-action settlement for Southern Illinois University right now. Settlements usually come months or years after a breach. Follow Southern Illinois University and we'll email you if one opens.
What you can do now
- Read the notice letter if you got one. It says what data was involved and may offer free credit monitoring with an enrollment deadline.
- Consider a free credit freeze at Equifax, Experian and TransUnion, especially if your Social Security number was involved.
- Change reused passwords and turn on two-factor authentication.
- Watch your bank, card and insurance statements for activity you don't recognize.
Follow Southern Illinois University
Get an email when Southern Illinois University has an open settlement: when one is announced, a weekly reminder with the deadline and days left, and a heads-up if the deadline moves. Nothing about other companies unless you ask for it.
Free. At most one email a week, and only when there is something to act on. One-click unsubscribe in every email. Privacy