Oncology Institute
Disclosed May 22, 20264 months agoConfirmed
Oncology Institute reports patient data exposed in software vendor breach
The Oncology Institute filed an 8-K after learning that a software vendor suffered unauthorized access to information systems, compromising patient personal and health information. It said operations and care were not affected and offered credit monitoring.
What is known
| People affected | Not stated in the sources we have |
|---|---|
| Disclosed | May 22, 2026 |
| Discovered | May 20, 2026 |
| Attack | Vendor breach |
| Data exposed | Health, Names |
| Sector | Healthcare · US |
| Status | Confirmed |
Sources
| Source | |
|---|---|
| Oncology Institute, Inc. Form 8-K, Item 1.05 (2026-05-22)sec.gov · SEC filing | SEC filing |
Notices filed
History of this record
- 2026-09-25 · attack: unknown to third-party · seed source
- 2026-09-25 · data_types: [] to ["health","names"] · seed source
- 2026-09-25 · discovered: empty to 2026-05-20 · seed source
- 2026-09-25 · summary: empty to The Oncology Institute filed an 8-K after learning that a software vendor suffered unauthorized access to information systems, compromising patient personal and health information. It said operations and care were not affected and offered c · seed source
- 2026-09-25 · title: Material cybersecurity incident reported to the SEC (8-K Item 1.05) to Oncology Institute reports patient data exposed in software vendor breach · seed source
- 2026-09-25 · added · backfill source
First seen 2026-09-25 (SEC 8-K), confirmed by SEC 8-K. Record counts are as reported. Not legal advice.