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Dean Health Service Company, LLC (referenced herein as "WellFirst Health")
ArchivedSubmitted 07/28/2023
- State
- MN
- Covered entity type
- Business Associate
- Individuals affected
- 1,027
- Business associate present
- Yes
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Network Server
- First seen by InfoSec Signals
- 9/23/2026
- Last seen in OCR export
- 9/23/2026
OCR description
Dean Health Service Company, the business associate (BA), reported that its subcontractor experienced a cyber-attack that compromised the protected health information (PHI) of 1,027 individuals. The PHI involved included names, addresses, dates of birth, social security numbers, claims information, and healthcare provider information. The BA notified HHS, affected individuals, the media, and posted substitute notice on its website. In response to the breach the BA and its subcontractor implemented additional administrative, technical, and security safeguards.
Change history
- 9/23/2026Added to OCR's archive list
Source: U.S. Department of Health and Human Services, Office for Civil Rights, Breach Portal. Records are reproduced as published; entity names and figures are OCR's.