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Confidence MediumMay 20, 2026oncologyinstitute.com

The Oncology Institute Notified of Patient Data Breach

PatternExternal actor · Hacking · Confidentiality impact

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.

Signal date
May 20, 2026
Updated
Jun 25, 2026
Confidence
Medium
Sources
2 sources
oncologyinstitute.com logo

Oncologyinstitute

Sector
Health Care and Social Assistance
Signals
1 linked

Signal context

First seen: May 20, 2026

Last updated: Jun 25, 2026

Status: Public signal

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.

Signal analysis

Beta

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.

Affected organization
Oncologyinstitute logo
Oncologyinstitute

Sector: Health Care and Social Assistance

Likely country: Location not provided

Estimated
Threat source
Hacking activity

Watch internet-facing systems, credential abuse and exploit activity.

  • Source type: outside the affected organization
Business impact
Potential data exposure

Impact area: Confidentiality

Likely asset: User or customer data

Trend context
74 signals with similar action pattern
  • 12 signals in the same sector
  • 93 signals with the same likely impact area
  • 1 signal linked to this organization/domain
Mentioned entities
OncologyinstituteData DisclosureThe Oncology Institute Notified ofThe Oncology InstituteNotificationKrollUnauthorizedPotentially

External sources

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