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Analyze » Edmunds » EDM2371423112725

Incident Score: Analysis & Impact (EDM2371423112725)

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

Rankiteo Score Impact Analysis

Rankiteo Incident Impact-60
Company Score Before Incident738 / 1000
Company Score After Incident678 / 1000
INCIDENT NUMBEREDM2371423112725
Type of Cyber IncidentBreach
ATTACK VECTORNA
DATA EXPOSEDnames, Social Security numbers, credit...
INCIDENT DATE18/08/2025
STATUSDisclosed; ongoing remediation (credit monitoring services offered)

Key Highlights From The Incident Analysis

  • Timeline of Edmunds's Breach 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 Edmunds 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 Edmunds breach identified under incident ID EDM2371423112725.

The analysis begins with a detailed overview of Edmunds's information like the linkedin page: https://www.linkedin.com/company/edmunds-com, the number of followers: 47078, the industry type: Automotive and the number of employees: 609 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 738 and after the incident was 678 with a difference of -60 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 Edmunds and their customers.

On 14 November 2025, Edmunds.com disclosed Data Breach issues under the banner "Edmunds.com Data Breach Involving Proprietary Messaging Tool".

On Aug.

The disruption is felt across the environment, affecting proprietary messaging tool, and exposing names, Social Security numbers and credit card information, with nearly 17 records at risk.

In response, teams activated the incident response plan, and began remediation that includes Arranged 24 months of complimentary credit monitoring and identity protection services for affected individuals, and stakeholders are being briefed through Consumer notice with guidance on fraud alerts, security freezes, and accessing free credit reports; encouragement to enroll in protection services by Jan. 31, 2026.

The case underscores how Disclosed; ongoing remediation (credit monitoring services offered), and recommending next steps like Affected individuals should enroll in complimentary credit monitoring and identity protection services by Jan. 31, 2026, Regularly review credit reports, financial accounts, and insurance statements for suspicious activity and Promptly report signs of fraud to financial institutions or law enforcement, with advisories going out to stakeholders covering Consumer notice with guidance on fraud protection measures and Encouragement to enroll in IDX services by Jan. 31, 2026.

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 Collection tactic, the analysis identified Automated Collection (T1119) with moderate to high confidence (85%), supported by evidence indicating proprietary messaging tool used by dealers/customers exposed 17 text messages with PII.. Under the Exfiltration tactic, the analysis identified Exfiltration Over Unencrypted/Obfuscated Non-C2 Protocol (T1048.003) with moderate to high confidence (80%), supported by evidence indicating 17 text messages containing PII exfiltrated via messaging tool (no encryption mentioned).. Under the Initial Access tactic, the analysis identified Valid Accounts (T1078) with moderate to high confidence (75%), supported by evidence indicating unauthorized activity detected by a vendor operating systems supporting this tool (implies abuse of existing access). and Exploit Public-Facing Application (T1190) with moderate to high confidence (70%), supported by evidence indicating proprietary messaging tool (public-facing) as likely entry point; no patch/vuln details provided.. Under the Impact tactic, the analysis identified Impairment: Data Destruction (T1598.003) with lower confidence (30%), supported by evidence indicating no explicit destruction, but PII exposure enables long-term identity exploitation (secondary impact). and Malicious Activity via API (T1659) with moderate confidence (65%), supported by evidence indicating messaging tool (likely API-backed) abused to access PII in text messages.. Under the Credential Access tactic, the analysis identified Unsecured Credentials: Private Keys (T1552.004) with moderate confidence (50%), supported by evidence indicating no direct evidence, but vendor detection suggests possible misuse of credentials/keys for tool access.. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.

Sources & References