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Analyze » Bellwether Community Credit Union » BEL1764898419

Incident Score: Analysis & Impact (BEL1764898419)

The details regarding individual company incidents & reports gives you full view from every side.

Rankiteo Score Impact Analysis

Rankiteo Incident Impact-146
Company Score Before Incident753 / 1000
Company Score After Incident607 / 1000
Company LinkView Bellwether Community Credit Union Profile
INCIDENT NUMBERBEL1764898419
Type of Cyber IncidentRansomware
ATTACK VECTORThird-Party Vendor Compromise
DATA EXPOSEDPersonally Identifiable Information (PII), Financial...
INCIDENT DATE13/08/2025
STATUSOngoing

Key Highlights From The Incident Analysis

  • Timeline of Bellwether Community Credit Union'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 Bellwether Community Credit Union 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 Bellwether Community Credit Union breach identified under incident ID BEL1764898419.

The analysis begins with a detailed overview of Bellwether Community Credit Union's information like the linkedin page: https://www.linkedin.com/company/bellwether-community-credit-union, the number of followers: 1247, the industry type: Banking and the number of employees: 84 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 753 and after the incident was 607 with a difference of -146 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 Bellwether Community Credit Union and their customers.

On 01 November 2025, Bellwether Community Credit Union disclosed Data Breach issues under the banner "Bellwether Community Credit Union Data Breach via Third-Party Vendor".

Bellwether Community Credit Union notified members of a data breach exposing sensitive personal information due to a ransomware attack on its third-party vendor, Marquis Software Solutions Inc.

The disruption is felt across the environment, affecting Third-party vendor systems (Marquis Software Solutions Inc.), and exposing Personally Identifiable Information (PII), Financial Account Information, with nearly 912+ records at risk.

In response, teams activated the incident response plan, moved swiftly to contain the threat with measures like Investigation launched, forensic review conducted, and stakeholders are being briefed through Member notifications, regulatory disclosures.

The case underscores how Ongoing, with advisories going out to stakeholders covering Member notifications sent in November 2025.

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 Supply Chain Compromise (T1195) with high confidence (95%), supported by evidence indicating occurred through a third-party vendor, Marquis Software Solutions Inc. and Exploit Public-Facing Application (T1190) with high confidence (90%), supported by evidence indicating gained access through Marquis’ SonicWall firewall. Under the Execution tactic, the analysis identified Exploitation for Client Execution (T1203) with moderate to high confidence (70%), supported by evidence indicating sonicWall firewall vulnerability exploited for ransomware attack. Under the Impact tactic, the analysis identified Data Encrypted for Impact (T1486) with moderate to high confidence (85%), supported by evidence indicating victim of a ransomware attack, data encryption such as Potential and Data Destruction (T1485) with moderate confidence (50%), supported by evidence indicating ransomware attack implies potential data destruction. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate to high confidence (80%), supported by evidence indicating potentially acquiring files containing customer data, data exfiltration such as Potential. Under the Credential Access tactic, the analysis identified Adversary-in-the-Middle (T1557) with moderate confidence (60%), supported by evidence indicating sonicWall firewall compromise may have enabled credential interception. Under the Defense Evasion tactic, the analysis identified Impair Defenses: Disable or Modify Tools (T1562.001) with moderate to high confidence (70%), supported by evidence indicating ransomware attack likely involved disabling security tools. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.

Sources & References