2025-11-06 Oncology Institute, Inc. Cybersecurity Incident

Page last updated on November 6, 2025

Oncology Institute, Inc. initially disclosed a cybersecurity incident in an SEC 8-K filing on 2025-11-06 16:30:27 EST.

Company Summary

The Oncology Institute, Inc. provides comprehensive oncology care and clinical trial services for adult and senior cancer patients across the United States.

Incident Details

Material: No
Is Breach: Unknown
Records Compromised: Unknown
Data Types Impacted: No Data Types Tracked (yet)

Compromised Date: Unknown
Detected Date: 2025-11-03
Disclosure Date: 2025-11-03
Contained Date: Unknown
Recovered Date: Unknown

Attack Goal: Unknown
Attack Tactics¹: No Attack Tactics Tracked (yet)
Attack Techniques¹: No Attack Techniques Tracked (yet)

Costs: No Costs Tracked (yet)

Filings

8-K filed on 2025-11-06

Oncology Institute, Inc. filed an 8-K at 2025-11-06 16:30:27 EST
Accession Number: 0001079973-25-001666

Item 7.01 Regulation FD Disclosure.

On November 3, 2025, The Oncology Institute, Inc. (the "Company") determined that a cybersecurity incident affecting an information technology software provider would potentially delay fee-for-service collections. Based on the Company's current assessment, this incident is expected to result in a brief immaterial delay in the collection of some claims in the Company's fee-for-service segment.

To date, the software provider has not indicated to the Company that there is any evidence that any patient personal information was compromised as a result of this incident, and an investigation remains ongoing.

The Company is collaborating closely with the software provider to mitigate the effects and restore normal billing operations as quickly as possible.

Company Information