College Hospital Costa Mesa Files Notice of Data Breach with California Attorney General | Console and Associates, P.C.
On March 10, 2025, College Hospital Costa Mesa (“CHCM”) filed a notice of data breach with the Attorney General of California after discovering that an unauthorized party accessed files on the company’s computer network. In this notice, College Hospital Costa Mesa explains that the incident resulted in an unauthorized party being able to access consumers’ sensitive information, which includes their names, Social Security numbers, and driver’s license numbers. Upon completing its investigation, College Hospital Costa Mesa began sending out data breach notification letters to all individuals whose information was affected by the recent data security incident.
If you received a data breach notification from College Hospital Costa Mesa, it is essential you understand what is at risk and what you can do about it. A data breach lawyer can help you learn more about how to protect yourself from becoming a victim of fraud or identity theft, as well as discuss your legal options following the College Hospital Costa Mesa data breach. For more information, please see our recent piece on the topic here.
What Caused the College Hospital Costa Mesa Data Breach?
The College Hospital Costa Mesa data breach was only recently announced, and more information is expected in the near future. However, College Hospital Costa Mesa’s filing with the Attorney General of California provides some important information on what led up to the breach. According to this source, on September 17, 2024, CHCM experienced a network disruption that impacted some of its computer systems. In response, College Hospital Costa Mesa secured its network, notified law enforcement, and then launched an investigation with the help of outside cybersecurity experts.
Through this investigation, College Hospital Costa Mesa confirmed that an unauthorized party was able to access certain files and folders on its IT network between August 14, 2024 and September 17, 2024. It was subsequently determined that the unauthorized party was able to access confidential consumer information on CHCM’s network.
After learning that sensitive consumer data was accessible to an unauthorized party, College Hospital Costa Mesa reviewed the compromised files to determine what information was leaked and which consumers were impacted. College Hospital Costa Mesa completed this process on January 31, 2025, and while the breached information varies depending on the individual, it may include your name, Social Security number, and driver’s license number.
On March 10, 2025, College Hospital Costa Mesa sent out data breach letters to anyone who was affected by the recent data security incident. These letters should provide victims with a list of what information belonging to them was compromised.
More Information About College Hospital Costa Mesa
College Hospital Costa Mesa is a private behavioral health facility specializing in psychiatric and mental health services for adolescents and adults. Located in Costa Mesa, California, the hospital provides inpatient and outpatient programs, including crisis stabilization, dual diagnosis treatment, and partial hospitalization services. With a focus on patient-centered care, College Hospital Costa Mesa offers comprehensive mental health treatment tailored to individuals struggling with mood disorders, substance use, and other behavioral health conditions. The organization employs approximately 1,464 people and generates an estimated $67 million in annual revenue.
