OSF HealthCare Data Breach Investigation

Turke & Strauss LLP, a leading data breach law firm, is investigating OSF HealthCare regarding its recent data breach. The OSF HealthCare data breach may have involved sensitive personal information belonging to an undetermined number of individuals.


OSF HealthCare is an integrated health system owned and operated by The Sisters of the Third Order of St. Francis, headquartered in Peoria, Illinois.2 Comprised of 16 hospitals OSF HealthCare has 2,131 licensed beds throughout Illinois and Michigan.2 Today, OSF HealthCare employs more than 23,000 Mission Partners across 158 locations; has two colleges of nursing; operates OSF Home Care Services, an extensive network of home health and hospice services; owns Pointcore, Inc., comprised of health care-related businesses; OSF HealthCare Foundation, the philanthropic arm for the organization; and OSF Ventures, which provides investment capital for promising health care innovation startups.2


On July 26, 2023, Welltok, Inc., a third-party vendor of OSF HealthCare, discovered that it had experienced a data breach in which personal identifiable information and protected health information may have been accessed and acquired. Through its investigation, Welltok determined that an unauthorized actor may have accessed this sensitive information through a vulnerability in the MOVEit file sharing platform, which Welltok utilized, on May 30, 2023. On November 29, 2023, OSF HealthCare confirmed in a statement that it was impacted by the Welltok data breach.1

If you received a breach notification letter from OSF HealthCare or Welltok, Inc.:

We would like to speak with you about your rights and potential legal remedies in response to this data breach. Please fill out the form, below, or contact us at (608) 237-1775 or sam@turkestrauss.com.

If you were impacted by the OSF HealthCare data breach, you may consider taking the following steps to protect your personal information.

  1. Carefully review the breach notice and retain a copy;
  2. Enroll in any free credit monitoring services provided by OSF HealthCare:
  3. Change passwords and security questions for online accounts;
  4. Regularly review account statements for signs of fraud or unauthorized activity;
  5. Monitor credit reports for signs of identity theft; and
  6. Contact a credit bureau(s) to request a temporary fraud alert.

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