Tri-City Medical Center Data Breach Investigation

Turke & Strauss LLP, a leading data breach law firm, is investigating Tri-City Medical Center regarding its recent cyber-security incident. The Tri-City Medical Center cyber-security incident may have involved sensitive personal information belonging to an undetermined number of individuals.


Tri-City Medical Center is a full-service acute care public hospital based in southern California. Founded in 1961, Tri-City Medical Center provides a range of medical services and programs, including orthopedics and spine care, heart and vascular care, cancer services, surgical services, rehabilitation, and emergency services. Additionally, Tri-City Medical Center features over 500 physicians practicing in more than 60 specialties. Located in Oceanside, California, Tri-City Medical Center’s facilities include nearby outpatient services, and orthopedic, primary care, pulmonary, oncology and urology clinics.


On November 9, 2023, Tri-City Medical Center became aware of a cyber-security incident impacting the functionality of its systems. According to a statement posted on its website, Tri-City Medical Center is investigating the incident and will share updates as new information becomes available. While much information is still unknown about the incident, a ransomware group added Tri-City Medical Center to their list of victims on their website on December 7, 2023. According to online sources, the ransomware group provided several files as proof of access to Tri-City Medical Center’s system. As of December 12, 2023, Tri-City Medical Center has not confirmed that the incident resulted in a data breach.

If you have received a breach notification letter from Tri-City Medical Center:

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

If you were impacted by the Tri-City Medical Center 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 Tri-City Medical Center;
  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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