Case file: Southern Illinois University
Every government filing on this incident, the dates as stated, and the days to notice against each state's statute. Built from the records on Nov 9, 2026, agency link on every row. Not legal advice.
The incident
- Breach window
- Jul 10, 2025 to Sep 29, 2025
- Discovered
- No discovery date stated in the letters we read
- State and federal records
- 5 filings, Aug 20, 2026 to Aug 21, 2026
- Residents counted
- 2,306 in 4 states (MA, TX, VT, WA), latest filing per state
- Everyone affected
- 44,118, as reported to Texas AG on Aug 21, 2026
- Information exposed
- Social Security number, Postal address, Tax ID / EIN / ITIN, Phone number
- Offered to those affected
- No monitoring offer found in the letters we read
- Third party named
- No
Filings
| Agency | Record date | People | In total | Days to notice | Links |
|---|---|---|---|---|---|
| Massachusetts Massachusetts OCABR | Aug 21, 2026 | 134 | No dates to count between | Record | |
| Texas Texas AG | Aug 21, 2026 | 1,597 | 44,118 | 326 days from breach end, statute 60 days | Record |
| Vermont Vermont AG | Aug 20, 2026 | 23 | No dates to count between | Record | |
| California California AG | Aug 20, 2026 | Not published | 325 days from breach end, statute 30 days | Letter Record | |
| Washington Washington AG | Aug 20, 2026 | 552 | 406 days from breach end, statute 30 days | Letter Record |
People is the count the filing gives, residents of the state unless marked total. Days to notice runs from the discovery date the letter states, or from the end of the breach window when no letter states one, to the date on the state's first record of the incident. "Over" marks a count past the days the state's statute allows for notice to residents. The statute's trigger is a question of fact, the days are arithmetic.
Notice timing, state by state
- 326 days from the end of the breach window (Sep 29, 2025, no discovery date in the letter) to the Texas record (Aug 21, 2026). Statute: 60 days from determination that the breach occurred (Tex. Bus. & Com. Code § 521.053).
- 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).
- 406 days from the end of the breach window (Jul 10, 2025, no discovery date in the letter) to the Washington record (Aug 20, 2026). Statute: 30 days from discovery of the breach (RCW 19.255.010).
The statutes
- Massachusetts: no fixed period to notify residents from knowledge or reason to know of the breach, Mass. Gen. Laws ch. 93H, § 3. Attorney General and OCABR as soon as practicable and without unreasonable delay, every breach.
- Texas: 60 days to notify residents from determination that the breach occurred, Tex. Bus. & Com. Code § 521.053. Attorney General within 30 days of determination when 250 or more Texas residents are affected.
- Vermont: 45 days to notify residents from discovery or notification of the breach, 9 V.S.A. § 2435. Attorney General within 14 business days of discovery or of the consumer notice, whichever is sooner, every breach.
- California: 30 days to notify residents from discovery or notification of the breach, Cal. Civ. Code § 1798.82. Sample notice to the Attorney General when more than 500 Californians are notified, within 15 days of the consumer notice (effective 2026).
- Washington: 30 days to notify residents from discovery of the breach, RCW 19.255.010. Attorney General within 30 days of discovery when more than 500 Washington residents are affected.
Sources and method
Records as published by Massachusetts OCABR, Texas AG, Vermont AG, California AG, Washington AG. Letter facts (discovery date, monitoring, third party) are read from the consumer letter the agency posted, 2 letters read for this incident, and quoted so you can check them. Texas and HHS publish no letters. First-seen times on each record page. Spot an error? Email support@breachtally.com with this page link.