HHS OCR report ยท 2023
ZOLL Services LLC data breach
OCR report facts
- Covered entity
- ZOLL Services LLC
- Entity type
- Healthcare Provider
- State
- Massachusetts
- Individuals affected
- 997,097
- Submission date
- Mar 10, 2023
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Network Server
- Business associate present
- No
- Status
- Archive (closed)
OCR description
The covered entity (CE), ZOLL Services, reported that it experienced a ransomware attack that affected the protected health information (PHI) of 997,097 individuals. The PHI involved included names, social security numbers, addresses, birthdates and other treatment information. The CE notified HHS, the affected individuals, and the media. In response to the breach, the CE provided complimentary credit monitoring services and implemented additional administrative, technical, and security safe...
Text as published on the HHS OCR breach portal.
Other reports by ZOLL Services LLC
| Covered entity | State | Entity type | Individuals | Submitted | Type of breach | Status |
|---|---|---|---|---|---|---|
| ZOLL Services LLC | PA | Healthcare Provider | 277,319 | Mar 18, 2019 | Hacking/IT Incident | Archive (closed) |
Frequently asked questions
How many people were affected by the ZOLL Services LLC data breach?
The report to HHS OCR lists 997,097 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Mar 10, 2023.
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 ZOLL Services LLC 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 ZOLL Services LLC.