Incident Score: Analysis & Impact (ILD1770230857)
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Rankiteo Score Impact Analysis
Key Highlights From The Incident Analysis
- Timeline of Illinois Department of Healthcare and Family Services'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 Illinois Department of Healthcare and Family Services 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 Illinois Department of Healthcare and Family Services breach identified under incident ID ILD1770230857.
The analysis begins with a detailed overview of Illinois Department of Healthcare and Family Services's information like the linkedin page: https://www.linkedin.com/company/ildhfs, the number of followers: 4098, the industry type: Hospitals and Health Care and the number of employees: 348 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 674 with a difference of -89 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 Illinois Department of Healthcare and Family Services and their customers.
On 28 September 2025, Illinois Department of Human Services (IDHS) disclosed Data Breach issues under the banner "Illinois Department of Human Services Data Breach".
The Illinois Department of Human Services (IDHS) disclosed a significant data breach impacting 705,017 individuals across the U.S.
The disruption is felt across the environment, and exposing Names, addresses, case numbers, case statuses, referral sources, regional office details, protected health information (PHI), with nearly 705,017 records at risk.
In response, and stakeholders are being briefed through Public notice on IDHS website, advisories to affected individuals.
The case underscores how and recommending next steps like Affected individuals advised to monitor accounts linked to IDHS services for suspicious activity, with advisories going out to stakeholders covering Affected individuals advised to monitor accounts for suspicious activity.
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 Endpoint Denial of Service (T1499) with high confidence (90%), supported by evidence indicating linked to a distributed denial-of-service (DDoS) attack. Under the Impact tactic, the analysis identified Endpoint Denial of Service: Service Exhaustion Flood (T1499.002) with moderate to high confidence (80%), supported by evidence indicating dDoS attack claimed by Red Wolf Cyber caused service disruptions and Data Manipulation: Transmitted Data Manipulation (T1565.002) with moderate confidence (50%), supported by evidence indicating dDoS attack may have enabled data exposure during disruptions. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate to high confidence (70%), supported by evidence indicating red Wolf Cyber publicized breach on dark web with evidence and Automated Exfiltration (T1020) with moderate confidence (60%), supported by evidence indicating 705,017 records exposed, likely automated during DDoS. Under the Collection tactic, the analysis identified Data from Local System (T1005) with moderate to high confidence (80%), supported by evidence indicating names, addresses, case numbers, PHI compromised via IDHS systems. Under the Credential Access tactic, the analysis identified Unsecured Credentials: Credentials In Files (T1552.001) with lower confidence (40%), supported by evidence indicating pII/PHI exposure suggests possible credential harvesting during breach. Under the Defense Evasion tactic, the analysis identified Endpoint Denial of Service (T1499) with moderate to high confidence (70%), supported by evidence indicating dDoS attack used to obscure data exposure activities. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.
Sources & References
- Illinois Department of Healthcare and Family Services Rankiteo Cyber Incident Details: https://www.rankiteo.com/company/ildhfs/incident/ILD1770230857
- Illinois Department of Healthcare and Family Services CyberSecurity Rating page: https://www.rankiteo.com/company/ildhfs
- Illinois Department of Healthcare and Family Services Rankiteo Cyber Incident Blog Article: https://blog.rankiteo.com/ild1770230857-illinois-department-of-human-services-breach-april-2023/
- Illinois Department of Healthcare and Family Services CyberSecurity Score History: https://www.rankiteo.com/company/ildhfs/history
- Illinois Department of Healthcare and Family Services CyberSecurity Incident Source: https://www.claimdepot.com/data-breach/illinois-dhs-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