- State
- MO
- Covered entity type
- Business Associate
- Individuals affected
- 1,220
- Business associate present
- Yes
- Type of breach
- Hacking/IT Incident
- Location of breached information
- First seen by InfoSec Signals
- 9/23/2026
- Last seen in OCR export
- 9/23/2026
OCR description
The business associate (BA), Polsinelli, reported that an employee was the subject of an email phishing scheme that compromised the protected health information (PHI) of 1,220 individuals. The PHI involved included names, addresses, Social Security numbers, claims information, and other treatment information. The BA notified HHS, affected individuals, and the media. In response to the breach, the BA implemented additional administrative, technical, and security safeguards. Staff were retrained on email security precautions.
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.