Incident Score: Analysis & Impact (TRIMOSOCHREI1774651014)
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Rankiteo Score Impact Analysis
Key Highlights From The Incident Analysis
- Timeline of Mosaic Health'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 Mosaic Health 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 Mosaic Health breach identified under incident ID TRIMOSOCHREI1774651014.
The analysis begins with a detailed overview of Mosaic Health's information like the linkedin page: https://www.linkedin.com/company/mosaichealthny, the number of followers: 43, the industry type: Hospitals and Health Care and the number of employees: 36 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 767 and after the incident was 705 with a difference of -62 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 Mosaic Health and their customers.
On 13 January 2026, Health Gorilla disclosed Data Breach issues under the banner "Health Gorilla Data Breach Exposes Sensitive Patient Information".
Health Gorilla, a Silicon Valley-based healthcare interoperability platform, is under investigation following a data breach that may have exposed sensitive patient information through its health information exchange (HIE) network.
The disruption is felt across the environment, affecting Health information exchange (HIE) network, and exposing Personally identifiable information (PII) and medical records, including names, dates of birth, addresses, driver’s license and insurance card details, financial information, and clinical data (diagnoses, conditions, lab results, medications, and care plans).
In response, moved swiftly to contain the threat with measures like Temporary suspension of affected health organizations from the HIE network.
The case underscores how Ongoing.
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 Valid Accounts (T1078) with moderate to high confidence (80%), supported by evidence indicating data may have been accessed for treatment purposes, but legitimacy unconfirmed and Trusted Relationship (T1199) with moderate to high confidence (70%), supported by evidence indicating unauthorized disclosure through its health information exchange (HIE) network. Under the Credential Access tactic, the analysis identified Steal Application Access Token (T1528) with moderate to high confidence (70%), supported by evidence indicating hIE network access may have been abused for unauthorized data access and Valid Accounts: Cloud Accounts (T1078.004) with moderate confidence (60%), supported by evidence indicating health Gorillas interoperability platform likely uses cloud-based accounts. Under the Collection tactic, the analysis identified Data from Local System (T1005) with high confidence (90%), supported by evidence indicating clinical data (diagnoses, conditions, lab results, medications) compromised and Data from Information Repositories (T1213) with moderate to high confidence (80%), supported by evidence indicating data breach through health information exchange (HIE) network. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate confidence (60%), supported by evidence indicating unauthorized disclosure of health data through HIE network and Transfer Data to Cloud Account (T1537) with moderate confidence (50%), supported by evidence indicating health Gorillas platform facilitates data sharing via cloud infrastructure. Under the Impact tactic, the analysis identified Data Destruction (T1485) with lower confidence (30%), supported by evidence indicating investigation ongoing; no confirmation of data destruction and Data Manipulation: Stored Data Manipulation (T1565.001) with lower confidence (40%), supported by evidence indicating clinical data (diagnoses, conditions) may have been accessed or altered. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.
Sources & References
- Mosaic Health Rankiteo Cyber Incident Details: https://www.rankiteo.com/company/mosaichealthny/incident/TRIMOSOCHREI1774651014
- Mosaic Health CyberSecurity Rating page: https://www.rankiteo.com/company/mosaichealthny
- Mosaic Health Rankiteo Cyber Incident Blog Article: https://blog.rankiteo.com/trimosochrei1774651014-ochin-mosaic-reid-health-trinity-health-breach-january-2026/
- Mosaic Health CyberSecurity Score History: https://www.rankiteo.com/company/mosaichealthny/history
- Mosaic Health CyberSecurity Incident Source: https://www.claimdepot.com/investigations/health-gorilla-data-breach-2026
- Rankiteo A.I CyberSecurity Rating methodology: https://www.rankiteo.com/Images/rankiteo_algo.pdf
- Rankiteo TPRM Scoring methodology: https://static.rankiteo.com/model/rankiteo_tprm_methodology.pdf