Incident Score: Analysis & Impact (COL1782147238)
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Rankiteo Score Impact Analysis
Key Highlights From The Incident Analysis
- Timeline of Colorado Health Network'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 Colorado Health Network 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 Colorado Health Network breach identified under incident ID COL1782147238.
The analysis begins with a detailed overview of Colorado Health Network's information like the linkedin page: https://www.linkedin.com/company/coloradohealthnetwork, the number of followers: 1436, the industry type: Non-profit Organizations and the number of employees: 153 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 763 and after the incident was 698 with a difference of -65 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 Colorado Health Network and their customers.
On 22 June 2026, Colorado Health Network Inc. disclosed Data Breach issues under the banner "Colorado Health Network Data Breach Exposing Sensitive Patient Information".
Colorado Health Network Inc., a Denver-based nonprofit providing medical care and support services to individuals with HIV/AIDS and other health conditions, reported a significant data breach involving highly sensitive personal and health information.
The disruption is felt across the environment, and exposing Highly sensitive personal and health information.
In response, and stakeholders are being briefed through Published notice on website, established helpline (1-866-659-7097).
The case underscores how with advisories going out to stakeholders covering Complimentary 24-month identity monitoring services offered to affected individuals; dedicated helpline established.
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 moderate confidence (60%), supported by evidence indicating breach involving highly sensitive personal and health information and Valid Accounts (T1078) with moderate confidence (50%), supported by evidence indicating threat actor *Cephalus* claimed responsibility for data theft. Under the Credential Access tactic, the analysis identified Unsecured Credentials (T1552) with moderate to high confidence (70%), supported by evidence indicating exposed Social Security numbers, government-issued IDs, financial details and OS Credential Dumping (T1003) with moderate confidence (50%), supported by evidence indicating highly sensitive personal and health information compromised. Under the Collection tactic, the analysis identified Data from Local System (T1005) with high confidence (90%), supported by evidence indicating medical records (diagnoses, prescriptions, treatment codes) exposed and Data from Information Repositories (T1213) with moderate to high confidence (80%), supported by evidence indicating 900 GB of data allegedly stolen from the organization. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with high confidence (90%), supported by evidence indicating threat actor *Cephalus* claimed theft of over 900 GB of data and Exfiltration Over Web Service (T1567) with moderate to high confidence (70%), supported by evidence indicating data posted on the Tor network by threat actor. Under the Impact tactic, the analysis identified Data Destruction (T1485) with lower confidence (40%), supported by evidence indicating significant data breach involving highly sensitive information and Data Manipulation: Transmitted Data Manipulation (T1565.002) with lower confidence (30%), supported by evidence indicating no details on malware’s origin or extent of breach. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.
Sources & References
- Colorado Health Network Rankiteo Cyber Incident Details: https://www.rankiteo.com/company/coloradohealthnetwork/incident/COL1782147238
- Colorado Health Network CyberSecurity Rating page: https://www.rankiteo.com/company/coloradohealthnetwork
- Colorado Health Network Rankiteo Cyber Incident Blog Article: https://blog.rankiteo.com/col1782147238-colorado-health-network-inc-breach-august-2025/
- Colorado Health Network CyberSecurity Score History: https://www.rankiteo.com/company/coloradohealthnetwork/history
- Colorado Health Network CyberSecurity Incident Source: https://www.claimdepot.com/data-breach/colorado-health-network-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