Incident Score: Analysis & Impact (ILL1767807165)

In this Rankiteo incident briefing, we review the Illinois Department of Central Management Services breach identified under incident ID ILL1767807165.

The analysis begins with a detailed overview of Illinois Department of Central Management Services's information like the linkedin page: https://www.linkedin.com/company/illinoiscms, the number of followers: 11604, the industry type: Government Administration and the number of employees: 202 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 760 and after the incident was 655 with a difference of -105 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 Central Management Services and their customers.

On 22 September 2025, Illinois Department of Human Services (IDHS) disclosed Data Exposure issues under the banner "Illinois Department of Human Services (IDHS) Sensitive Data Exposure on Public Maps".

The Illinois Department of Human Services (IDHS) disclosed a security incident involving the exposure of sensitive information on publicly accessible maps.

The disruption is felt across the environment, affecting Publicly accessible maps platform, and exposing Names, addresses, case numbers, demographic information, and other personal details, with nearly 705,017 records at risk.

In response, moved swiftly to contain the threat with measures like Restricted access to the maps, and began remediation that includes Review of privacy settings, implementation of new Secure Map Policy, and stakeholders are being briefed through Notices sent to affected individuals and regulatory authorities.

The case underscores how Completed (no evidence of misuse found), teams are taking away lessons such as Importance of proper privacy settings and access controls for sensitive data, especially in public-facing platforms. Need for stricter policies to prevent upload of customer-level data to public platforms, and recommending next steps like Implement and enforce a Secure Map Policy, restrict map access to authorized personnel, conduct regular audits of privacy settings, and provide training on data protection best practices, with advisories going out to stakeholders covering Notices sent to affected individuals with information on fraud alerts and security freezes.

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.