Incident Score: Analysis & Impact (SONMAR1772202741)
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 SonicWall's Vulnerability 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 SonicWall 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 SonicWall breach identified under incident ID SONMAR1772202741.
The analysis begins with a detailed overview of SonicWall's information like the linkedin page: https://www.linkedin.com/company/sonicwall, the number of followers: 114071, the industry type: Computer and Network Security and the number of employees: 1979 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 100 and after the incident was 100 with a difference of 0 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 SonicWall and their customers.
Marquis Software Solutions recently reported "Marquis Software Solutions Sues SonicWall Over 2025 Cloud Vulnerability Linked to Ransomware Attack", a noteworthy cybersecurity incident.
Marquis Software Solutions has filed a lawsuit against SonicWall, alleging that a February 2025 cloud vulnerability enabled a ransomware attack in August 2025, exposing sensitive data from hundreds of financial institutions, including credit unions.
The disruption is felt across the environment, affecting Firewall configurations, MFA-protected systems, and exposing Sensitive data from financial institutions, plus an estimated financial loss of Legal expenses, forensic costs.
Formal response steps have not been shared publicly yet.
The case underscores how Ongoing (SonicWall denies technical evidence), with advisories going out to stakeholders covering Widespread notifications across the credit-union system.
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 high confidence (90%), with evidence including exploitable flaw through an API code change, and cloud vulnerability enabled a ransomware attack and Valid Accounts (T1078) with moderate to high confidence (80%), supported by evidence indicating exposed credentials and firewall configuration data exploited. Under the Credential Access tactic, the analysis identified Unsecured Credentials: Credentials In Files (T1552.001) with high confidence (90%), supported by evidence indicating unencrypted MFA scratch codes in the backups enabled threat actors and Unsecured Credentials: Container API (T1552.007) with moderate to high confidence (80%), supported by evidence indicating aPI code change flaw allowed unauthorized downloads of firewall config backups. Under the Defense Evasion tactic, the analysis identified Modify Authentication Process: Multi-Factor Authentication (T1556.006) with high confidence (90%), supported by evidence indicating bypassing multifactor authentication (MFA) protections and Brute Force: Password Guessing (T1110.001) with moderate to high confidence (70%), supported by evidence indicating predictable device serial numbers enabled threat actors to compromise systems. Under the Lateral Movement tactic, the analysis identified Remote Services: Remote Desktop Protocol (T1021.001) with moderate confidence (60%), supported by evidence indicating firewall configuration data exploited, likely enabling remote access. Under the Impact tactic, the analysis identified Data Encrypted for Impact (T1486) with high confidence (90%), supported by evidence indicating ransomware attack in August 2025 and Defacement: Internal Defacement (T1491.001) with moderate confidence (50%), supported by evidence indicating significant fallout for affected organizations, class-action litigation. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate to high confidence (70%), supported by evidence indicating exposing sensitive data from hundreds of financial institutions. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.
Sources & References
- SonicWall Rankiteo Cyber Incident Details: https://www.rankiteo.com/company/sonicwall/incident/SONMAR1772202741
- SonicWall CyberSecurity Rating page: https://www.rankiteo.com/company/sonicwall
- SonicWall Rankiteo Cyber Incident Blog Article: https://blog.rankiteo.com/sonmar1772202741-sonicwall-marquis-software-solutions-vulnerability-february-2025/
- SonicWall CyberSecurity Score History: https://www.rankiteo.com/company/sonicwall/history
- SonicWall CyberSecurity Incident Source: https://www.cutoday.info/Fresh-Today/Marquis-Sues-SonicWall-Alleges-2025-Cloud-Flaw-Led-To-Ransomware-Hit
- 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