Regulator-posted notice

Breach notice filed by CHCM, Inc. dba College Hospital Costa Mesa (December 2024)

Organization named: CHCM, Inc. dba College Hospital Costa Mesa Provisional: identity as filed, not yet matched to the directory
Type as the source lists it: Hacking/IT Incident

What the sources say

HHS OCR breach portal (HIPAA breaches affecting 500 or more individuals) Primary notice

Posted on the HHS OCR breach portal (HIPAA breaches affecting 500 or more individuals) with a submission date of Dec. 18, 2024.

Organization as reported: CHCM, Inc. dba College Hospital Costa Mesa, CA
Entity type as reported: Healthcare Provider
Category as reported: Hacking/IT Incident
Location of information as reported: Network Server
Submission date: Dec. 18, 2024
Observed by BreachRecords: 2026-10-18 16:15 UTC (revision 9549, row:688)
Archived copy: Held in the private archive (provenance)

The covered entity (CE), CHCM, Inc. dba College Hospital Costa Mesa, reported that it experienced a hacking incident that affected the protected health information (PHI) of 38,695 individuals. The PHI involved included demographic and clinical information. The CE notified HHS, affected individuals, the media, and provided individuals with free credit monitoring. In response to the breach, the CE implemented new technical safeguards.
The source's own words, from the revision above.

Figures, per source

38,695 individuals affected (total reported), as reported by the HHS OCR breach portal (HIPAA breaches affecting 500 or more individuals), source date Dec. 18, 2024, revision observed 2026-10-18.

Each figure is one source's figure with the basis that source gave. Figures from different sources are shown side by side and are not added, averaged or chosen between.

Timeline

Source dates are the dates the sources give. Observation dates are when BreachRecords recorded each revision.

2024-12-18Submission date at the HHS OCR breach portal (HIPAA breaches affecting 500 or more individuals)
2026-10-18Observed by BreachRecords (revision 9549)
2026-10-19Approved by a reviewer

Organizations linked by a reviewer

CHCM, Inc. dba College Hospital Costa Mesa Named as the covered entity Provisional: identity as filed, not yet matched to the directory Linked 2026-10-19, method provisional.

Archived evidence

3dbc27dd5742e041cc1e7fe18cc669e2901fbd3b86b7007ed27948ff4d406e1f
text/csv, 5,530,996 bytes, from the HHS OCR breach portal (HIPAA breaches affecting 500 or more individuals), retrieved 2026-10-18 16:15 UTC. Archived privately · Provenance · Source page

Records reflect source filings as of the dates shown. BreachRecords is not a regulator.

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