Incident Score: Analysis & Impact (USTTRA1778927199)
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 US Tiger Securities, Inc.'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 US Tiger Securities, Inc. 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 US Tiger Securities, Inc. breach identified under incident ID USTTRA1778927199.
The analysis begins with a detailed overview of US Tiger Securities, Inc.'s information like the linkedin page: https://www.linkedin.com/company/ustigersecurities, the number of followers: 2475, the industry type: Financial Services and the number of employees: 87 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 754 and after the incident was 628 with a difference of -126 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 US Tiger Securities, Inc. and their customers.
On 10 July 2025, US Tiger Securities (Tiger Brokers) disclosed Data Breach, Ransomware issues under the banner "US Tiger Securities Data Breach Exposes Sensitive Customer Information".
Between July 8 and 9, 2025, US Tiger Securities operating as Tiger Brokers suffered a cybersecurity breach in its virtual back-office environment, which also supports its affiliate, TradeUP.
The disruption is felt across the environment, affecting Virtual back-office environment, and exposing Names, Social Security numbers, driver’s license and government-issued ID numbers, medical records, health insurance details.
In response, and stakeholders are being briefed through Notified affected individuals post-investigation.
The case underscores how Concluded, with advisories going out to stakeholders covering Notifications sent to affected individuals.
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 Valid Accounts (T1078) with moderate confidence (60%), supported by evidence indicating unauthorized third party encrypted files and exfiltrated data and Exploit Public-Facing Application (T1190) with moderate confidence (50%), supported by evidence indicating breach in its virtual back-office environment. Under the Execution tactic, the analysis identified User Execution: Malicious File (T1204.002) with moderate to high confidence (70%), supported by evidence indicating files encrypted by threat actor. Under the Credential Access tactic, the analysis identified OS Credential Dumping (T1003) with moderate confidence (60%), supported by evidence indicating social Security numbers, driver’s license, government-issued ID numbers compromised. Under the Collection tactic, the analysis identified Data from Local System (T1005) with moderate to high confidence (80%), supported by evidence indicating medical records, health insurance details compromised. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with high confidence (90%), supported by evidence indicating data exfiltrated before intrusion was detected. Under the Impact tactic, the analysis identified Data Encrypted for Impact (T1486) with high confidence (90%), supported by evidence indicating files encrypted by unauthorized third party. Under the Defense Evasion tactic, the analysis identified Obfuscated Files or Information (T1027) with moderate confidence (60%), supported by evidence indicating intrusion detected only after encryption and exfiltration and Service Stop (T1489) with moderate confidence (50%), supported by evidence indicating files encrypted by threat actor. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.
Sources & References
- US Tiger Securities, Inc. Rankiteo Cyber Incident Details: https://www.rankiteo.com/company/ustigersecurities/incident/USTTRA1778927199
- US Tiger Securities, Inc. CyberSecurity Rating page: https://www.rankiteo.com/company/ustigersecurities
- US Tiger Securities, Inc. Rankiteo Cyber Incident Blog Article: https://blog.rankiteo.com/usttra1778927199-tradeup-us-tiger-securities-ransomware-july-2025/
- US Tiger Securities, Inc. CyberSecurity Score History: https://www.rankiteo.com/company/ustigersecurities/history
- US Tiger Securities, Inc. CyberSecurity Incident Source: https://www.classaction.org/data-breach-lawsuits/us-tiger-securities-may-2026
- 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