Incident Score: Analysis & Impact (QUA1785465704)
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Rankiteo Score Impact Analysis
Key Highlights From The Incident Analysis
- Timeline of Quantum 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 Quantum 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 Quantum Health breach identified under incident ID QUA1785465704.
The analysis begins with a detailed overview of Quantum Health's information like the linkedin page: https://www.linkedin.com/company/quantum-health, the number of followers: 52569, the industry type: Hospitals and Health Care and the number of employees: 1609 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 769 and after the incident was 707 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 Quantum Health and their customers.
On 08 July 2026, Quantum Health Inc. disclosed Data Breach issues under the banner "Quantum Health Data Breach Exposes Sensitive Patient Information".
Quantum Health Inc.
The disruption is felt across the environment, affecting IT network, and exposing Personally identifiable information (PII) and protected health information (PHI).
In response, and stakeholders are being briefed through Notification letters to affected individuals, dedicated call center.
The case underscores how Ongoing, with advisories going out to stakeholders covering Notification letters with enrollment details for identity monitoring services.
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 Phishing: Vishing (T1566.004) with high confidence (90%), supported by evidence indicating attacker gained entry through a fraudulent call to a company user. Under the Execution tactic, the analysis identified User Execution: Malicious Link (T1204.001) with moderate confidence (60%), supported by evidence indicating fraudulent call to a company user, allowing access to internal systems. Under the Credential Access tactic, the analysis identified Adversary-in-the-Middle (T1557) with moderate to high confidence (70%), supported by evidence indicating fraudulent call to a company user, allowing access to internal systems. Under the Collection tactic, the analysis identified Data from Local System (T1005) with moderate to high confidence (80%), supported by evidence indicating exposed data included names, SSNs, medical records, insurance policy numbers and Data from Information Repositories (T1213) with moderate to high confidence (80%), supported by evidence indicating stolen files contained PII and PHI of affected individuals. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate to high confidence (80%), supported by evidence indicating unauthorized party exfiltrated files between May 29 and June 1. Under the Impact tactic, the analysis identified Data Manipulation: Transmitted Data Manipulation (T1565.002) with moderate confidence (50%), supported by evidence indicating fraudulent call to a company user, allowing access to internal systems and Data Destruction (T1485) with lower confidence (40%), supported by evidence indicating service outage detected on June 1, linked to the breach. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.
Sources & References
- Quantum Health Rankiteo Cyber Incident Details: https://www.rankiteo.com/company/quantum-health/incident/QUA1785465704
- Quantum Health CyberSecurity Rating page: https://www.rankiteo.com/company/quantum-health
- Quantum Health Rankiteo Cyber Incident Blog Article: https://blog.rankiteo.com/qua1785465704-quantum-health-inc-breach-may-2026/
- Quantum Health CyberSecurity Score History: https://www.rankiteo.com/company/quantum-health/history
- Quantum Health CyberSecurity Incident Source: https://www.claimdepot.com/data-breach/quantum-health-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