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Board of Trustees of Southern Illinois University, for

Disclosed Mar 5, 20215 years ago40,330 affectedConfirmed

Official notice

The covered entity (CE), The Board of Trustees of Southern Illinois University, for and on behalf of its School of Medicine, and SIU Physicians & Surgeons, reported that it experienced a cyber-attack that affected the protected health information (PHI) of 40,330 individuals. The PHI involved included names, addresses, dates of birth, drivers’ license and Social Security numbers, claims information, diagnoses, lab results, and medications. The CE notified HHS, affected individuals, and the media. In response to the breach, the CE provided complimentary credit monitoring services and implemented additional administrative, technical, and security safeguards to better protect its PHI.

What is known

People affected40,330 (as reported to HHS)
DisclosedMar 5, 2021
AttackHacking
Data exposedNames, Health
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

WhereFiledPeople
HHS archivetotalMar 5, 202140,330
History of this record
  • 2026-09-25 · added · backfill source

First seen 2026-09-25 (HHS archive), confirmed by HHS OCR. Record counts are as reported. Not legal advice.

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