HHS OCR report ยท 2025
Cerner Corporation data breach
OCR report facts
- Covered entity
- Cerner Corporation
- Entity type
- Business Associate
- State
- Missouri
- Individuals affected
- 501
- Submission date
- Jun 17, 2025
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Network Server
- Business associate present
- Yes
- Status
- Archive (closed)
OCR description
Cerner reported that it experienced a cyberattack that compromised the protected health information (PHI) of 501 individuals. Cerner was acquired by Oracle Corporation in 2022, and as a result, the investigation has closed since Cerner is no longer a covered entity.
Text as published on the HHS OCR breach portal.
Frequently asked questions
How many people were affected by the Cerner Corporation data breach?
The report to HHS OCR lists 501 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Jun 17, 2025.
What type of breach was it?
The OCR portal lists the type of breach as Hacking/IT Incident, with the breached information located in: Network Server.
Is the investigation still open?
No. The report is in the OCR portal archive, which holds reports where OCR has closed its review.
Is a breach notice letter from Cerner Corporation legitimate?
This site cannot verify letters. Check the sender against the organisation's official website and the HHS OCR breach portal, and avoid calling numbers or clicking links only listed in an unexpected message. See our guide on what to do after a data breach notice.
Source: HHS OCR Breach Portal, OCR export October 2026. Network USA is not affiliated with HHS or Cerner Corporation.