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Analyze » TriZetto Provider Solutions » ONCTRI1779733617

Incident Score: Analysis & Impact (ONCTRI1779733617)

The details regarding individual company incidents & reports gives you full view from every side.

Rankiteo Score Impact Analysis

Rankiteo Incident Impact-65
Company Score Before Incident399 / 1000
Company Score After Incident334 / 1000
Company LinkView TriZetto Provider Solutions Profile
INCIDENT NUMBERONCTRI1779733617
Type of Cyber IncidentBreach
ATTACK VECTORThird-party vendor compromise
DATA EXPOSEDPatient information
INCIDENT DATE19/05/2026
STATUSOngoing

Key Highlights From The Incident Analysis

  • Timeline of TriZetto Provider Solutions's Breach and lateral movement inside company's environment.
  • Overview of affected data sets, including SSNs and PHI, and why they materially increase incident severity.
  • How Rankiteo’s incident engine converts technical details into a normalized incident score.
  • How this cyber incident impacts TriZetto Provider Solutions Rankiteo cyber scoring and cyber rating.
  • Rankiteo’s MITRE ATT&CK correlation analysis for this incident, with associated confidence level.

Full Incident Analysis Transcript

In this Rankiteo incident briefing, we review the TriZetto Provider Solutions breach identified under incident ID ONCTRI1779733617.

The analysis begins with a detailed overview of TriZetto Provider Solutions's information like the linkedin page: https://www.linkedin.com/company/trizettoprovider, the number of followers: 9031, the industry type: IT Services and IT Consulting and the number of employees: 326 employees

After the initial compromise, the video explains how Rankiteo's incident engine converts technical details into a normalized incident score. The incident score before the incident was 399 and after the incident was 334 with a difference of -65 which is could be a good indicator of the severity and impact of the incident.

In the next step of the video, we will analyze in more details the incident and the impact it had on TriZetto Provider Solutions and their customers.

On 20 May 2026, The Oncology Institute (TOI) disclosed Data Breach issues under the banner "Cybersecurity Incident at The Oncology Institute Exposing Patient Data".

The Oncology Institute (TOI) confirmed that a cybersecurity incident resulted in unauthorized access to patient information.

The disruption is felt across the environment, and exposing Patient information.

In response, and stakeholders are being briefed through SEC filing, patient portal for inquiries.

The case underscores how Ongoing, with advisories going out to stakeholders covering Patient portal for inquiries.

Finally, we try to match the incident with the MITRE ATT&CK framework to see if there is any correlation between the incident and the MITRE ATT&CK framework.

The MITRE ATT&CK framework is a knowledge base of techniques and sub-techniques that are used to describe the tactics and procedures of cyber adversaries. It is a powerful tool for understanding the threat landscape and for developing effective defense strategies.

MITRE ATT&CK® Correlation Analysis

Rankiteo's analysis has identified several MITRE ATT&CK tactics and techniques associated with this incident, each with varying levels of confidence based on available evidence. Under the Initial Access tactic, the analysis identified Supply Chain Compromise (T1195) with high confidence (90%), with evidence including breach originated from a third-party software vendor, and initial access broker entry point such as Third-party vendor and Compromise Software Supply Chain (T1195.002) with moderate to high confidence (80%), with evidence including triZetto Provider Solutions (Cognizant-owned) likely source, and vendor detected unauthorized access to TOI’s systems. Under the Credential Access tactic, the analysis identified Steal Application Access Token (T1528) with moderate to high confidence (70%), with evidence including unauthorized access to TOI’s systems via third-party vendor, and patient data accessed implies credential misuse. Under the Collection tactic, the analysis identified Data from Local System (T1005) with moderate to high confidence (80%), with evidence including patient information was compromised, and high sensitivity of data (PII likely). Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate to high confidence (70%), with evidence including unauthorized access to patient data, and incident affected multiple healthcare providers and Transfer Data to Cloud Account (T1537) with moderate confidence (60%), with evidence including vendor established a patient portal for disclosures, and third-party involvement suggests cloud/data transfer. Under the Impact tactic, the analysis identified Defacement (T1491) with moderate confidence (50%), supported by evidence indicating patient portal established for inquiries (public disclosure) and Data Manipulation: Transmitted Data Manipulation (T1565.002) with lower confidence (40%), supported by evidence indicating unauthorized access to systems implies potential tampering. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.

Initial Access
Supply Chain Compromise (90%)
Compromise Software Supply Chain (80%)
Credential Access
Steal Application Access Token (70%)
Collection
Data from Local System (80%)
Exfiltration
Exfiltration Over C2 Channel (70%)
Transfer Data to Cloud Account (60%)
Impact
Defacement (50%)
Data Manipulation: Transmitted Data Manipulation (40%)

Sources & References