Incident Score: Analysis & Impact (OPT1770288581)
The details regarding individual company incidents & reports gives you full view from every side.
Rankiteo Score Impact Analysis
Key Highlights From The Incident Analysis
- Timeline of Optima Tax Relief'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 Optima Tax Relief 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 Optima Tax Relief breach identified under incident ID OPT1770288581.
The analysis begins with a detailed overview of Optima Tax Relief's information like the linkedin page: https://www.linkedin.com/company/optimataxrelief, the number of followers: 4486, the industry type: Financial Services and the number of employees: 409 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 571 and after the incident was 385 with a difference of -186 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 Optima Tax Relief and their customers.
Optima Tax Relief recently reported "Optima Tax Relief Hit by Chaos Ransomware Attack", a noteworthy cybersecurity incident.
A prominent U.S.
The disruption is felt across the environment, and exposing 69GB of sensitive data.
Formal response steps have not been shared publicly yet.
Overall, the incident is a reminder of why proactive monitoring and strong governance matter.
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 (50%), supported by evidence indicating ransomware attack by the Chaos group, which claims to have stolen 69GB and Valid Accounts (T1078) with moderate confidence (60%), supported by evidence indicating chaos ransomware group strategically targeting organizations. Under the Execution tactic, the analysis identified User Execution: Malicious File (T1204.002) with moderate to high confidence (70%), supported by evidence indicating ransomware attack...before encrypting the company’s systems. Under the Credential Access tactic, the analysis identified Unsecured Credentials: Credentials In Files (T1552.001) with moderate confidence (60%), supported by evidence indicating customer case files containing...Social Security numbers. Under the Collection tactic, the analysis identified Data from Local System (T1005) with moderate to high confidence (80%), supported by evidence indicating 69GB of sensitive data...including customer case files. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with high confidence (90%), supported by evidence indicating chaos group...claims to have stolen 69GB of sensitive data. Under the Impact tactic, the analysis identified Data Encrypted for Impact (T1486) with high confidence (90%), supported by evidence indicating encrypting the company’s systems...double-extortion tactic and Defacement: External Defacement (T1491.002) with moderate to high confidence (70%), supported by evidence indicating threatens to leak it unless a ransom is paid. Under the Defense Evasion tactic, the analysis identified Obfuscated Files or Information (T1027) with moderate confidence (60%), supported by evidence indicating chaos ransomware...encrypting the company’s systems. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.
Sources & References
- Optima Tax Relief Rankiteo Cyber Incident Details: https://www.rankiteo.com/company/optimataxrelief/incident/OPT1770288581
- Optima Tax Relief CyberSecurity Rating page: https://www.rankiteo.com/company/optimataxrelief
- Optima Tax Relief Rankiteo Cyber Incident Blog Article: https://blog.rankiteo.com/opt1770288581-optima-tax-relief-ransomware-june-2025/
- Optima Tax Relief CyberSecurity Score History: https://www.rankiteo.com/company/optimataxrelief/history
- Optima Tax Relief CyberSecurity Incident Source: https://www.foxnews.com/tech/chaos-ransomware-hits-optima-tax-relief-leaks-69gb-data
- 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