Incident Score: Analysis & Impact (COMPIN1773247957)
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Rankiteo Score Impact Analysis
Key Highlights From The Incident Analysis
- Timeline of CommonSpirit 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 CommonSpirit 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 CommonSpirit Health breach identified under incident ID COMPIN1773247957.
The analysis begins with a detailed overview of CommonSpirit Health's information like the linkedin page: https://www.linkedin.com/company/commonspirithealth, the number of followers: 145452, the industry type: Hospitals and Health Care and the number of employees: 45793 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 752 and after the incident was 694 with a difference of -58 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 CommonSpirit Health and their customers.
On 02 February 2026, CommonSpirit Health disclosed Ransomware issues under the banner "CommonSpirit Health Vendor Breach Exposes Data of Nearly 20,000 Washington Residents".
A ransomware attack on Pinnacle Holdings, LTD, a healthcare consulting vendor, has led to the exposure of sensitive personal data linked to CommonSpirit Health, one of the largest nonprofit health systems in the U.S.
The disruption is felt across the environment, affecting Pinnacle Holdings, LTD network, and exposing Personally identifiable information (PII), medical information, with nearly 19,027 records at risk.
In response, moved swiftly to contain the threat with measures like Isolated systems, and stakeholders are being briefed through Posted notice on CommonSpirit Health website, reported to Washington Attorney General.
The case underscores how Ongoing, with advisories going out to stakeholders covering Notice posted on CommonSpirit Health website.
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 Exploit Public-Facing Application (T1190) with lower confidence (40%), supported by evidence indicating unauthorized access to Pinnacle’s network between November 11 and November 25, 2024 and Trusted Relationship (T1199) with moderate to high confidence (80%), supported by evidence indicating breach via Pinnacle Holdings, LTD, a healthcare consulting vendor for CommonSpirit Health. Under the Execution tactic, the analysis identified Exploitation for Client Execution (T1203) with moderate confidence (50%), supported by evidence indicating ransomware attack on Pinnacle Holdings, LTD. Under the Credential Access tactic, the analysis identified OS Credential Dumping (T1003) with moderate confidence (60%), supported by evidence indicating exposed data includes names, full dates of birth, medical information. Under the Collection tactic, the analysis identified Data from Local System (T1005) with high confidence (90%), supported by evidence indicating threat actor copied personally identifiable information (PII) and Data from Information Repositories (T1213) with moderate to high confidence (70%), supported by evidence indicating medical information and other unspecified details exposed. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate to high confidence (80%), supported by evidence indicating data exfiltration confirmed; 19,027 records exposed. Under the Impact tactic, the analysis identified Data Encrypted for Impact (T1486) with moderate confidence (50%), supported by evidence indicating ransomware attack on Pinnacle Holdings, LTD. Under the Defense Evasion tactic, the analysis identified Indicator Removal: Clear Windows Event Logs (T1070.001) with lower confidence (40%), supported by evidence indicating delays in notification; Northgauge informed in November 2025. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.
Sources & References
- CommonSpirit Health Rankiteo Cyber Incident Details: https://www.rankiteo.com/company/commonspirithealth/incident/COMPIN1773247957
- CommonSpirit Health CyberSecurity Rating page: https://www.rankiteo.com/company/commonspirithealth
- CommonSpirit Health Rankiteo Cyber Incident Blog Article: https://blog.rankiteo.com/compin1773247957-commonspirit-health-northgauge-healthcare-advisors-breach-november-2024/
- CommonSpirit Health CyberSecurity Score History: https://www.rankiteo.com/company/commonspirithealth/history
- CommonSpirit Health CyberSecurity Incident Source: https://www.claimdepot.com/investigations/commonspirit-health-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