JPMorganChase Breach Incident Score: Analysis & Impact (JPM4403744110825)

In this Rankiteo incident briefing, we review the JPMorganChase breach identified under incident ID JPM4403744110825.

The analysis begins with a detailed overview of JPMorganChase's information like the linkedin page: https://www.linkedin.com/company/chase, the number of followers: 6572111, the industry type: Financial Services and the number of employees: 215187 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 787 and after the incident was 787 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 JPMorganChase and their customers.

On 07 November 2025, Chase Affiliated Companies disclosed Data Breach issues under the banner "Data Breach at Chase Affiliated Companies Affecting Texas Residents".

On Nov.

The disruption is felt across the environment, and exposing Names and Social Security numbers, with nearly 979 records at risk.

In response, teams activated the incident response plan, and stakeholders are being briefed through Notifications sent via U.S. Mail to affected individuals with breach details and protective guidance.

The case underscores how and recommending next steps like Affected individuals should monitor their credit reports and financial accounts for suspicious activity, Consider placing a fraud alert or credit freeze on credit files and Be cautious of phishing attempts or scams targeting exposed PII, with advisories going out to stakeholders covering Notifications sent via U.S. Mail with breach details and protective guidance.

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.

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 Data from Local System (T1005) with high confidence (95%), supported by evidence indicating personally Identifiable Information (PII): **names, Social Security numbers** exposed. Under the Exfiltration tactic, the analysis identified Exfiltration Over Alternative Protocol (T1048) with moderate to high confidence (85%), supported by evidence indicating 979 records of **PII (SSNs/names)** compromised; no exfiltration method specified. Under the Impact tactic, the analysis identified Identity Theft (T1659) with high confidence (99%), supported by evidence indicating **High risk of identity theft** due to exposure of Social Security numbers. Under the Initial Access tactic, the analysis identified Exploit Public-Facing Application (T1190) with moderate to high confidence (80%), supported by evidence indicating systemic vulnerabilities in data protection (likely exploited public-facing systems). These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.