- State
- NY
- Covered entity type
- Health Plan
- Individuals affected
- 13,344
- Business associate present
- No
- 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
Mason Tenders’ District Council Welfare Fund, the covered entity (CE), reported that it experienced a ransomware attack that compromised the protected health information (PHI) of 13,344 individuals. The PHI involved included names, Social Security numbers, diagnoses, health insurance information, medications, and other treatment information. The CE notified HHS, the affected individuals, and the media. In its mitigation efforts, the CE implemented additional administrative, technical, and security safeguards to better protect PHI.
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.