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Analyze » OCHIN, Inc. » TRIOCHPET1769201334

Incident Score: Analysis & Impact (TRIOCHPET1769201334)

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

Rankiteo Score Impact Analysis

Rankiteo Incident Impact-113
Company Score Before Incident505 / 1000
Company Score After Incident392 / 1000
Company LinkView OCHIN, Inc. Profile
INCIDENT NUMBERTRIOCHPET1769201334
Type of Cyber IncidentBreach
ATTACK VECTORThird-party vendor compromise
DATA EXPOSEDSensitive personal and health-related information
INCIDENT DATE14/12/2025
STATUSOngoing

Key Highlights From The Incident Analysis

  • Timeline of OCHIN, Inc.'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 OCHIN, Inc. 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 OCHIN, Inc. breach identified under incident ID TRIOCHPET1769201334.

The analysis begins with a detailed overview of OCHIN, Inc.'s information like the linkedin page: https://www.linkedin.com/company/ochin, the number of followers: 23535, the industry type: Hospitals and Health Care and the number of employees: 989 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 505 and after the incident was 392 with a difference of -113 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 OCHIN, Inc. and their customers.

On 15 December 2025, Petaluma Health Center disclosed Data Breach issues under the banner "Petaluma Health Center Data Breach Exposes Sensitive Patient Information".

Petaluma Health Center recently disclosed a data breach affecting sensitive personal and health-related information of its patients.

The disruption is felt across the environment, affecting TriZetto's system (third-party vendor for OCHIN), and exposing Sensitive personal and health-related information.

In response, and began remediation that includes Notification to affected individuals, complimentary credit monitoring services, and stakeholders are being briefed through Mail notifications to affected individuals, breach notice filed with California Attorney General’s office.

The case underscores how Ongoing, with advisories going out to stakeholders covering Mail notifications to affected individuals.

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 Trusted Relationship (T1199) with high confidence (90%), supported by evidence indicating unauthorized individual had accessed a system belonging to TriZetto, a third-party vendor. Under the Credential Access tactic, the analysis identified Steal Application Access Token (T1528) with moderate to high confidence (70%), supported by evidence indicating accessed a system belonging to TriZetto, a third-party vendor working with OCHIN and Valid Accounts (T1078) with moderate to high confidence (80%), with evidence including unauthorized individual had accessed a system, and third-party vendor compromise. Under the Collection tactic, the analysis identified Data from Local System (T1005) with high confidence (90%), with evidence including patient data...may have been exposed, and includes names, SSNs, health data. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate to high confidence (80%), supported by evidence indicating data breach affecting sensitive personal and health-related information and Transfer Data to Cloud Account (T1537) with moderate confidence (60%), with evidence including third-party vendor system accessed, and data exposure confirmed. Under the Impact tactic, the analysis identified Stored Data Manipulation (T1565.001) with moderate confidence (50%), supported by evidence indicating patient data...may have been exposed during the breach and Data Destruction (T1485) with lower confidence (30%), supported by evidence indicating no details on extent of breach or data integrity. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.

Initial Access
Trusted Relationship (90%)
Credential Access
Steal Application Access Token (70%)
Valid Accounts (80%)
Collection
Data from Local System (90%)
Exfiltration
Exfiltration Over C2 Channel (80%)
Transfer Data to Cloud Account (60%)
Impact
Stored Data Manipulation (50%)
Data Destruction (30%)

Sources & References