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Analyze » Texas Capital » TEXEXP1780504684

Incident Score: Analysis & Impact (TEXEXP1780504684)

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

Rankiteo Score Impact Analysis

Rankiteo Incident Impact-80
Company Score Before Incident769 / 1000
Company Score After Incident689 / 1000
Company LinkView Texas Capital Profile
INCIDENT NUMBERTEXEXP1780504684
Type of Cyber IncidentBreach
ATTACK VECTORNA
DATA EXPOSEDSensitive personal information, including names...
INCIDENT DATE25/04/2026
STATUSpublished

Key Highlights From The Incident Analysis

  • Timeline of Texas Capital'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 Texas Capital 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 Texas Capital breach identified under incident ID TEXEXP1780504684.

The analysis begins with a detailed overview of Texas Capital's information like the linkedin page: https://www.linkedin.com/company/texas-capital, the number of followers: 45292, the industry type: Banking and the number of employees: 2206 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 769 and after the incident was 689 with a difference of -80 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 Texas Capital and their customers.

On 28 May 2026, Texas Capital Bank disclosed Data Breach issues under the banner "Texas Capital Bank Data Breach Affecting Over 86,000 Texas Residents".

Texas Capital Bank disclosed a data breach that occurred on April 26–27, 2026, exposing sensitive personal information, including names and Social Security numbers, of 86,067 Texas residents.

The disruption is felt across the environment, and exposing Sensitive personal information, including names and Social Security numbers, with nearly 86,067 records at risk.

In response, and stakeholders are being briefed through Notification via U.S. Mail.

The case underscores how with advisories going out to stakeholders covering Affected individuals notified via U.S. Mail with instructions for enrolling in Experian IdentityWorks. Phone support available for offline enrollment.

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 data breach...exposing sensitive personal information, including names and Social Security numbers and Exploit Public-Facing Application (T1190) with moderate confidence (50%), supported by evidence indicating no details on attack vector, but financial institutions are common targets. Under the Credential Access tactic, the analysis identified Modify Authentication Process (T1556) with lower confidence (40%), supported by evidence indicating social Security numbers compromised, enabling identity theft and OS Credential Dumping (T1003) with moderate confidence (50%), supported by evidence indicating high-sensitivity data (SSNs, names) exposed in breach. Under the Collection tactic, the analysis identified Data from Local System (T1005) with moderate to high confidence (80%), supported by evidence indicating 86,067 records exposed such as names, Social Security numbers. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate to high confidence (70%), supported by evidence indicating 86,067 Texas residents PII compromised in breach. Under the Impact tactic, the analysis identified Data Manipulation: Stored Data Manipulation (T1565.001) with moderate confidence (50%), supported by evidence indicating high identity theft risk for 86,067 affected individuals and Data Destruction (T1485) with lower confidence (30%), supported by evidence indicating no details on data integrity post-breach. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.

Initial Access
Valid Accounts (60%)
Exploit Public-Facing Application (50%)
Credential Access
Modify Authentication Process (40%)
OS Credential Dumping (50%)
Collection
Data from Local System (80%)
Exfiltration
Exfiltration Over C2 Channel (70%)
Impact
Data Manipulation: Stored Data Manipulation (50%)
Data Destruction (30%)

Sources & References