- State
- MO
- Covered entity type
- Healthcare Provider
- Individuals affected
- 643
- Business associate present
- No
- Type of breach
- Unauthorized Access/Disclosure
- Location of breached information
- Paper/Films
- First seen by InfoSec Signals
- 9/23/2026
- Last seen in OCR export
- 9/23/2026
OCR description
The covered entity (CE), SSM Health Cancer Care, erroneously mailed letters to the addresses of other patients due to using an inaccurate electronic file. The breach affected 670 individuals and included individuals’ names and their inferred treatment relationship. The CE provided breach notification to HHS, affected individuals, and the media. The CE performed a root cause analysis to identify risk areas and opportunities to strengthen controls and also retrained the individual who had erroneously sent out the mailings. The CE also created a new policy and procedures for patient mailings. OCR obtained documentation evidencing that the CE implemented the corrective actions listed.
Change history
- 9/23/2026Added to OCR's archive list
Source: HHS OCR Breach Portal, U.S. Department of Health and Human Services, Office for Civil Rights about this source
Records are reproduced as published; entity names and figures are OCR's.