Hand & Upper Extremity Centers
Disclosed Sep 1, 20179 years ago12,806 affectedConfirmed
On July 5, 2017, the covered entity (CE), Hand & Upper Extremity Centers dba Hand Rehabilitation Specialists, was informed that the hacker group, the Dark Overlord, may have breached their computer network. The CE reported the notice to the Ventura County Sheriff's High Tech Task Force, who began a forensic information technology investigation in consultation with the Federal Bureau of Investigation. This investigation is ongoing. To date, law enforcement has found no evidence of any information leaving the CE's system. However, unauthorized access has not been ruled out, and out of an abundance of caution, the CE provided breach notification to HHS, affected individuals, and the media. Following the breach, the CE changed passwords, updated access control logs, updated its email policy and procedures, and added technical and administrative security improvements. OCR obtained assurances that the CE implemented the voluntary corrective actions noted above.
What is known
| People affected | 12,806 (as reported to HHS) |
|---|---|
| Disclosed | Sep 1, 2017 |
| Attack | Hacking |
| Data exposed | Names, Social Security numbers, Health |
| Sector | Healthcare · US |
| Status | Confirmed |
Sources
| Source | |
|---|---|
| California Attorney General breach notice: Hand & Upper Extremity Centersoag.ca.gov · Official notice | Official notice |
| Maine Attorney General breach notice archive: Hand & Upper Extremity Centersmaine.gov · Official notice | Official notice |
| HHS OCR breach report (archive, resolved): Hand & Upper Extremity Centers (Healthcare Provider, CA)ocrportal.hhs.gov · Official notice | Official notice |
Notices filed
| Where | Filed | People |
|---|---|---|
| California AGresidents of CA | Sep 1, 2017 | |
| Maine AGresidents of ME | Sep 1, 2017 | 4 |
| HHS archivetotal | Sep 1, 2017 | 12,806 |
History of this record
- 2026-09-25 · sector: other to health · backfill source
- 2026-09-25 · attack: unknown to hacking · backfill source
- 2026-09-25 · data_types: ["names","ssn"] to ["names","ssn","health"] · backfill source
- 2026-09-25 · records_basis: empty to hhs · backfill source
- 2026-09-25 · records: empty to 12806 · backfill source
- 2026-09-25 · summary: empty to On July 5, 2017, the covered entity (CE), Hand & Upper Extremity Centers dba Hand Rehabilitation Specialists, was informed that the hacker group, the Dark Overlord, may have breached their computer network. The CE reported the notice to the · backfill source
- 2026-09-25 · data_types: [] to ["names","ssn"] · 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.