Incident Score: Analysis & Impact (COUEVE1772047686)
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Rankiteo Score Impact Analysis
Key Highlights From The Incident Analysis
- Timeline of Couve 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 Couve 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 Couve Health breach identified under incident ID COUEVE1772047686.
The analysis begins with a detailed overview of Couve Health's information like the linkedin page: https://www.linkedin.com/company/couve-health, the number of followers: 719, the industry type: Hospitals and Health Care and the number of employees: 8 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 759 and after the incident was 693 with a difference of -66 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 Couve Health and their customers.
On 24 February 2026, Couve Healthcare Consulting, LLC (Evergreen Healthcare Group) disclosed Data Breach issues under the banner "Evergreen Healthcare Group Discloses Major Data Breach Affecting Sensitive Patient Information".
On December 3, 2025, Couve Healthcare Consulting, LLC (operating as Evergreen Healthcare Group) detected unauthorized access to its cloud-based healthcare platform.
The disruption is felt across the environment, affecting Cloud-based healthcare platform, and exposing Highly sensitive personal data, including names, Social Security numbers, dates of birth, and medical records.
In response, and stakeholders are being briefed through Public notice posted, direct mail notifications to affected individuals, dedicated hotline (855-522-1474).
The case underscores how Ongoing, with advisories going out to stakeholders covering 24 months of complimentary credit monitoring, credit reports, and credit score services through Cyberscout.
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 (70%), supported by evidence indicating unauthorized access to its cloud-based healthcare platform and Exploit Public-Facing Application (T1190) with moderate confidence (50%), supported by evidence indicating cloud-based healthcare platform accessed by unknown party. Under the Credential Access tactic, the analysis identified Unsecured Credentials (T1552) with moderate confidence (60%), supported by evidence indicating unauthorized access to cloud-based platform suggests credential compromise and Brute Force (T1110) with lower confidence (40%), supported by evidence indicating no details on breach origin, but brute force possible. Under the Collection tactic, the analysis identified Data from Local System (T1005) with moderate to high confidence (80%), supported by evidence indicating files containing names, SSNs, DOBs, and medical records accessed. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate to high confidence (70%), supported by evidence indicating highly sensitive personal data accessed by unknown party and Transfer Data to Cloud Account (T1537) with moderate confidence (50%), supported by evidence indicating cloud-based platform breach suggests data exfiltration. Under the Impact tactic, the analysis identified Data Manipulation: Stored Data Manipulation (T1565.001) with lower confidence (40%), supported by evidence indicating medical records accessed; potential for manipulation 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.
Sources & References
- Couve Health Rankiteo Cyber Incident Details: https://www.rankiteo.com/company/couve-health/incident/COUEVE1772047686
- Couve Health CyberSecurity Rating page: https://www.rankiteo.com/company/couve-health
- Couve Health Rankiteo Cyber Incident Blog Article: https://blog.rankiteo.com/coueve1772047686-couve-healthcare-consulting-llc-evergreen-healthcare-group-breach-december-2025/
- Couve Health CyberSecurity Score History: https://www.rankiteo.com/company/couve-health/history
- Couve Health CyberSecurity Incident Source: https://www.claimdepot.com/data-breach/evergreen-healthcare-group-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