College Hospital Costa Mesa reports data breach
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College Hospital Costa Mesa reports a data breach that compromised sensitive patient information. On September 17, 2024, College Hospital Costa Mesa discovered a security incident that disrupted some of their IT systems.
The healthcare provider took steps to secure their systems, initiated an investigation with third-party forensic experts, and notified law enforcement. The investigation confirmed that an unauthorized third party had accessed files on their systems between August 14, 2024, and September 17, 2024.
College Hospital Costa Mesa determined on January 31, 2025, that patient information had been compromised. The compromised files contained information that varied per patient but may have included:
- Patient names
- Social Security numbers
- Dates of birth
- Dates of services
- Diagnosis information
- Driver's license numbers
- Other information indicating that patients received services at College Hospital Costa Mesa
The nature of the attack and the number of affected individuals have not been disclosed.
On March 10, 2025, the hospital notified additional patients whose information was involved in the incident. College Hospital Costa Mesa is offering complimentary identity monitoring services to patients whose Social Security numbers were compromised.
