TMG Health Breach Incident Score: Analysis & Impact (VILTMG1768494119)

In this Rankiteo incident briefing, we review the TMG Health breach identified under incident ID VILTMG1768494119.

The analysis begins with a detailed overview of TMG Health's information like the linkedin page: https://www.linkedin.com/company/tmg-health, the number of followers: 3764, the industry type: Hospitals and Health Care and the number of employees: 462 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 764 and after the incident was 700 with a difference of -64 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 TMG Health and their customers.

On 13 January 2026, VillageCareMAX disclosed Data Breach issues under the banner "VillageCareMAX Data Breach via Third-Party Administrator TMG Health, Inc.".

VillageCareMAX reported a data breach where sensitive personal identifiable information and protected health information may have been compromised.

The disruption is felt across the environment, affecting TMG Health, Inc. information systems, and exposing Sensitive personal identifiable information and protected health information.

In response, and stakeholders are being briefed through Data breach notification letters mailed to impacted individuals.

The case underscores how Completed, and recommending next steps like Providing complimentary credit monitoring services to affected individuals, with advisories going out to stakeholders covering Data breach notification letters with details of impacted information.

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.

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 access to systems managed by TMG Health, Inc., a third-party call center and Valid Accounts (T1078) with moderate to high confidence (70%), supported by evidence indicating unauthorized individual gained access to VillageCareMAX-related data. Under the Credential Access tactic, the analysis identified Steal Application Access Token (T1528) with moderate confidence (60%), supported by evidence indicating access to VillageCareMAX-related data stored on TMG’s systems and OS Credential Dumping (T1003) with moderate confidence (50%), supported by evidence indicating social Security numbers and member identification numbers compromised. Under the Collection tactic, the analysis identified Data from Local System (T1005) with moderate to high confidence (80%), supported by evidence indicating sensitive personal identifiable information and protected health information compromised. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate to high confidence (70%), supported by evidence indicating exposure window spanned nearly ten months, from November 20, 2024, to September 19, 2025 and Transfer Data to Cloud Account (T1537) with moderate confidence (50%), supported by evidence indicating third-party call center administrator (TMG) systems accessed. Under the Impact tactic, the analysis identified Data Manipulation: Stored Data Manipulation (T1565.001) with lower confidence (40%), supported by evidence indicating potential exposure of sensitive personal and health information and Data Destruction (T1485) with lower confidence (30%), supported by evidence indicating exact cause of the breach remains under review. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.