Incident Score: Analysis & Impact (USA1781641808)
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Rankiteo Score Impact Analysis
Key Highlights From The Incident Analysis
- Timeline of USAA'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 USAA 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 USAA breach identified under incident ID USA1781641808.
The analysis begins with a detailed overview of USAA's information like the linkedin page: https://www.linkedin.com/company/usaa, the number of followers: 442529, the industry type: Financial Services and the number of employees: 40115 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 796 and after the incident was 714 with a difference of -82 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 USAA and their customers.
USAA recently reported "USAA Data Breaches Expose Sensitive Military Member Data in Three Separate Incidents (2021–2024)", a noteworthy cybersecurity incident.
Between 2021 and 2024, USAA disclosed three major data breaches stemming from different vulnerabilities, compromising the personal and financial information of over 73,000 members, including active-duty military, veterans, and their families.
The disruption is felt across the environment, affecting Online insurance quote tool, Call center systems and Document delivery platform, and exposing Personal and financial information, including driver’s license numbers, Social Security numbers, bank details, PINs, debit/credit card numbers, medical records, and insurance policy details, with nearly ['22,383 (2021)', '~19,000 (2022–2023)', '32,276 (2024)'] records at risk, plus an estimated financial loss of $3.25 million (class-action settlement).
In response, and began remediation that includes Offered free identity monitoring and System updates and reconfigurations, and stakeholders are being briefed through Delayed member notifications (e.g., 2024 breach notified in August).
The case underscores how Ongoing (legal actions pending), teams are taking away lessons such as Vulnerabilities in third-party vendor oversight, system design, and change management can lead to significant breaches without sophisticated cyberattacks. Military-affiliated data requires heightened protection due to its high value in fraud schemes, and recommending next steps like Implement stricter rate limiting and CAPTCHA controls, Enforce multi-factor authentication for third-party vendors and Improve system update and configuration management, with advisories going out to stakeholders covering Affected members notified via mail and offered free identity monitoring.
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%), supported by evidence indicating attackers leveraged a flaw in USAA’s online insurance quote tool and Valid Accounts (T1078) with high confidence (95%), supported by evidence indicating call center representatives...shared login credentials with unauthorized individuals. Under the Credential Access tactic, the analysis identified Credentials from Web Browsers (T1552.003) with moderate to high confidence (70%), supported by evidence indicating stolen personal data from other breaches...matched to active USAA accounts and Valid Accounts: Cloud Accounts (T1078.004) with moderate to high confidence (80%), supported by evidence indicating third-party vendor shared login credentials...granting access to member accounts. Under the Collection tactic, the analysis identified Data from Local System (T1005) with high confidence (90%), supported by evidence indicating exposing driver’s license numbers, Social Security numbers, bank details and Data from Information Repositories (T1213) with moderate to high confidence (80%), supported by evidence indicating 32,276 members’ files...including medical records and insurance policy details. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate to high confidence (70%), supported by evidence indicating compromised the personal and financial information of over 73,000 members and Transfer Data to Cloud Account (T1537) with moderate confidence (60%), supported by evidence indicating third-party vendor...granting access to member accounts. Under the Defense Evasion tactic, the analysis identified Impair Defenses: Disable or Modify Tools (T1562.001) with moderate confidence (50%), supported by evidence indicating online insurance quote tool...lacked rate limiting and CAPTCHA controls and Valid Accounts (T1078) with moderate to high confidence (80%), supported by evidence indicating shared login credentials...granting access to member accounts. Under the Impact tactic, the analysis identified Data Destruction (T1485) with lower confidence (30%), supported by evidence indicating no fraud was reported, but data posed significant identity theft risks and Data Manipulation: Stored Data Manipulation (T1565.001) with lower confidence (40%), supported by evidence indicating misconfigured USAA’s document delivery platform...files visible to other users. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.
Sources & References
- USAA Rankiteo Cyber Incident Details: https://www.rankiteo.com/company/usaa/incident/USA1781641808
- USAA CyberSecurity Rating page: https://www.rankiteo.com/company/usaa
- USAA Rankiteo Cyber Incident Blog Article: https://blog.rankiteo.com/usa1781641808-usaa-breach-may-2021/
- USAA CyberSecurity Score History: https://www.rankiteo.com/company/usaa/history
- USAA CyberSecurity Incident Source: https://www.security.org/identity-theft/breach/usaa/
- 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