Incident Score: Analysis & Impact (CHE1775183387)
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Rankiteo Score Impact Analysis
Key Highlights From The Incident Analysis
- Timeline of Check City's Ransomware 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 Check City 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 Check City breach identified under incident ID CHE1775183387.
The analysis begins with a detailed overview of Check City's information like the linkedin page: https://www.linkedin.com/company/check-city, the number of followers: 1060, the industry type: Financial Services and the number of employees: 318 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 757 and after the incident was 584 with a difference of -173 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 Check City and their customers.
On 03 April 2025, Check City disclosed Data Breach, Ransomware issues under the banner "Check City Data Breach Exposes Personal and Financial Data of Over 320,000 Individuals".
Payday loan provider Check City has notified 322,687 individuals of a data breach that occurred in March 2025, exposing sensitive personal and financial information.
The disruption is felt across the environment, and exposing Names, Social Security numbers, government-issued ID numbers, financial account details, credit and debit card numbers, dates of birth, addresses, with nearly 322,687 records at risk.
In response, and stakeholders are being briefed through Notified affected individuals via mail, offered complimentary credit monitoring services.
The case underscores how Ongoing, with advisories going out to stakeholders covering Complimentary credit monitoring services offered.
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 unauthorized network access detected on April 3, 2025 and Valid Accounts (T1078) with moderate confidence (50%), supported by evidence indicating files may have been accessed by unauthorized individuals. Under the Credential Access tactic, the analysis identified Unsecured Credentials (T1552) with moderate to high confidence (70%), supported by evidence indicating social Security numbers, government-issued ID numbers compromised and OS Credential Dumping (T1003) with moderate confidence (60%), supported by evidence indicating financial account details, credit/debit card numbers exposed. Under the Collection tactic, the analysis identified Data from Local System (T1005) with moderate to high confidence (80%), supported by evidence indicating names, addresses, dates of birth, financial data compromised and Data from Information Repositories (T1213) with moderate to high confidence (70%), supported by evidence indicating 322,687 individuals personal and financial data exposed. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate to high confidence (80%), supported by evidence indicating clop ransomware group claimed responsibility for the breach and Transfer Data to Cloud Account (T1537) with moderate confidence (50%), supported by evidence indicating data breach impacting 322,687 individuals. Under the Impact tactic, the analysis identified Data Encrypted for Impact (T1486) with moderate to high confidence (70%), supported by evidence indicating ransomware group Clop claimed responsibility and Data Destruction (T1485) with lower confidence (40%), supported by evidence indicating attack threatening the organizations existence. Under the Defense Evasion tactic, the analysis identified Indicator Removal (T1070) with moderate confidence (60%), supported by evidence indicating unauthorized access detected weeks after initial compromise and Hide Artifacts (T1564) with moderate confidence (50%), supported by evidence indicating no evidence of fraudulent use reported. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.
Sources & References
- Check City Rankiteo Cyber Incident Details: https://www.rankiteo.com/company/check-city/incident/CHE1775183387
- Check City CyberSecurity Rating page: https://www.rankiteo.com/company/check-city
- Check City Rankiteo Cyber Incident Blog Article: https://blog.rankiteo.com/che1775183387-check-city-ransomware-march-2025/
- Check City CyberSecurity Score History: https://www.rankiteo.com/company/check-city/history
- Check City CyberSecurity Incident Source: https://www.pymnts.com/cybersecurity/2026/check-city-notifies-322687-people-of-march-2025-data-breach/
- 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