Highlands Oncology Group
Disclosed Dec 22, 202355,297 affectedConfirmed
The covered entity (CE), Highlands Oncology Group, reported that it experienced a ransomware incident that affected the protected health information (PHI) of 55,297 individuals. The PHI involved included names, addresses, dates of birth, Social Security numbers, claims information, diagnoses, conditions, lab results, medications, and other treatment information. The CE notified HHS, the affected individuals, and the media. In response to the breach, the CE implemented additional system monitoring safeguards, revised policies regarding remote access, and implemented additional technical safeguards.
What is known
| People affected | 55,297 (as reported to HHS) |
|---|---|
| Disclosed | Dec 22, 2023 |
| Attack | Hacking |
| Data exposed | NamesHealth |
| Sector | Healthcare · US |
| Status | Confirmed |
Sources
Notices filed
Other breaches at Highlands Oncology Group
History of this record
First seen 2026-09-25 (HHS archive), confirmed by HHS OCR. Record counts are as reported. Not legal advice.