ZOLL Medical
Disclosed Mar 10, 20233 years ago1,004,443 affectedConfirmed
The covered entity (CE), ZOLL Medical Corporation, reported that an employee was the subject of an email phishing scheme that affected the protected health information (PHI) of 8,898 individuals. The PHI involved included names, addresses, dates of birth, Social Security numbers, and medical diagnoses and other clinical information. ZOLL notified HHS, affected individuals, and the media. In its mitigation efforts, the CE implemented additional administrative, technical, and security safeguards to better protect its PHI. Staff were retrained on email security precautions.
What is known
| People affected | 1,004,443 (as reported by the organization) |
|---|---|
| Disclosed | Mar 10, 2023 |
| Discovered | Jan 28, 2023 |
| Happened | Aug 2, 2023 |
| Attack | Hacking |
| Data exposed | Names, Health |
| Sector | Healthcare · US |
| Status | Confirmed |
Sources
| Source | |
|---|---|
| California Attorney General breach notice: ZOLL Medicaloag.ca.gov · Official notice | Official notice |
| Washington Attorney General breach notice: ZOLL Medicalatg.wa.gov · Official notice | Official notice |
| Oregon DOJ breach notice: ZOLL Medicaljustice.oregon.gov · Official notice | Official notice |
| Vermont Attorney General: 2023-12-18 ZOLL Medical Corporation Data Breach Notice to Consumersago.vermont.gov · Official notice | Official notice |
| Vermont Attorney General: 2023-03-10 ZOLL Medical Corporation Data Breach Notice to Consumersago.vermont.gov · Official notice | Official notice |
| Indiana Attorney General 2023 data breach report: ZOLL Medicalin.gov · Official notice | Official notice |
| HHS OCR breach report (archive, resolved): ZOLL Medical (Health Plan, MA)ocrportal.hhs.gov · Official notice | Official notice |
Notices filed
| Where | Filed | People |
|---|---|---|
| California AGresidents of CA | Mar 10, 2023 | |
| Washington AGresidents of WA | Mar 10, 2023 | 6,176 |
| Oregon DOJresidents of OR | Mar 10, 2023 | 1,004,443 |
| Vermont AGresidents of VT | Mar 10, 2023 | |
| Indiana AGresidents of IN | Mar 10, 2023 | 6,922 |
| California AGresidents of CA | Dec 18, 2023 | |
| Vermont AGresidents of VT | Dec 18, 2023 | |
| HHS archivetotal | Dec 18, 2023 | 8,898 |
History of this record
- 2026-09-25 · data_types: [] to ["names","health"] · backfill source
- 2026-09-25 · summary: empty to The covered entity (CE), ZOLL Medical Corporation, reported that an employee was the subject of an email phishing scheme that affected the protected health information (PHI) of 8,898 individuals. The PHI involved included names, addresses, · backfill source
- 2026-09-25 · records_basis: empty to organization · backfill source
- 2026-09-25 · records: empty to 1004443 · backfill source
- 2026-09-25 · source: empty to https://ago.vermont.gov/document/2023-03-10-zoll-medical-corporation-data-breach-notice-consumers · backfill source
- 2026-09-25 · source: empty to https://ago.vermont.gov/document/2023-12-18-zoll-medical-corporation-data-breach-notice-consumers · backfill source
- 2026-09-25 · attack: unknown to hacking · backfill source
- 2026-09-25 · discovered: empty to 2023-01-28 · backfill source
- 2026-09-25 · disclosed: 2023-12-18 to 2023-03-10 · backfill source
- 2026-09-25 · added · backfill source
First seen 2026-09-25 (California AG), confirmed by California AG. Record counts are as reported. Not legal advice.