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Medium

The Oncology Institute Notified of Patient Data Breach

Kroll, acting as a third-party administrator, notified The Oncology Institute on May 20, 2026, that an unauthorized actor had accessed systems containing patient data.

Key points

  • Notification by third-party administrator Kroll on May 20, 2026.
  • Unauthorized access to systems containing patient data.
  • Potentially affected multiple other healthcare providers.

Connected intelligence

Signal brief

Follow the organization, likely method and potential impact to explore connected Shadow Tier intelligence.

02

Likely method

Confidentiality impact

Threat source not confirmed

03

Potential impact

Potential data exposure

Confidentiality

Published
May 20, 2026
Updated
Jun 25, 2026
Confidence
Medium
Evidence
2 sources

Structured assessment

Signal analysis

This analysis groups the signal by industry, likely incident action and impacted security area. It helps compare this signal with other published signals without treating the labels as final determinations.

Threat source

Threat source not confirmed

Watch exposure paths that could affect data, operations or third-party trust.

Business impact

Potential data exposure
Impact area
Confidentiality
Likely asset
User or customer data

Mentioned entities

OncologyinstituteData DisclosureThe Oncology Institute Notified ofThe Oncology InstituteNotificationKrollUnauthorizedPotentially

Quick context

Questions about this signal

What happened in this signal?

Kroll, acting as a third-party administrator, notified The Oncology Institute on May 20, 2026, that an unauthorized actor had accessed systems containing patient data. The incident appears to have affected multiple other healthcare providers as well.

When was this signal reported?

Shadow Tier lists May 20, 2026 as the signal date.

Which organization is connected to this signal?

Oncologyinstitute is the organization connected to this public signal.

Explore Oncologyinstitute