Habib Bank AG Zurich Breach Incident Score: Analysis & Impact (HAB5402254111225)

In this Rankiteo incident briefing, we review the Habib Bank AG Zurich breach identified under incident ID HAB5402254111225.

The analysis begins with a detailed overview of Habib Bank AG Zurich's information like the linkedin page: https://www.linkedin.com/company/habib-bank-ag-zurich, the number of followers: 41794, the industry type: Banking and the number of employees: 1630 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 652 and after the incident was 482 with a difference of -170 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 Habib Bank AG Zurich and their customers.

On 05 November 2025, Habib Bank AG Zurich disclosed Unauthorized Access, Ransomware Attack and Data Breach issues under the banner "Unauthorized Access and Ransomware Attack on Habib Bank AG Zurich".

Habib Bank AG Zurich disclosed unauthorized external access to its corporate network on November 5, 2025.

The disruption is felt across the environment, and exposing 2.56 TB (claimed by Qilin, unverified by the bank).

In response, teams activated the incident response plan, and began remediation that includes Ongoing investigation to assess and mitigate impact, and stakeholders are being briefed through Public notice posted on the bank’s website.

The case underscores how Ongoing (supported by cybersecurity and forensic experts), with advisories going out to stakeholders covering Public notice posted on the bank’s website.

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 Initial Access tactic, the analysis identified Phishing: Spearphishing Link (T1566.002) with moderate to high confidence (85%), supported by evidence indicating phishing Emails (likely, based on Qilins typical methods). Under the Execution tactic, the analysis identified User Execution: Malicious File (T1204.002) with moderate to high confidence (75%), supported by evidence indicating qilin ransomware gang infiltration (commonly via phishing). Under the Defense Evasion tactic, the analysis identified Indicator Removal: File Deletion (T1070.004) with moderate to high confidence (70%), supported by evidence indicating no persistent access was detected (suggests cleanup or evasion). Under the Credential Access tactic, the analysis identified OS Credential Dumping (T1003) with moderate confidence (65%), supported by evidence indicating 2.56 TB data exfiltration claim (implies lateral movement/credential use). Under the Discovery tactic, the analysis identified System Information Discovery (T1082) with moderate to high confidence (80%), supported by evidence indicating 2.56 TB of data stolen (implies network/system reconnaissance). Under the Lateral Movement tactic, the analysis identified Remote Services: Remote Desktop Protocol (T1021.001) with moderate confidence (60%), supported by evidence indicating corporate network access + large-scale data theft (implies internal movement). Under the Collection tactic, the analysis identified Data from Local System (T1005) with high confidence (90%), supported by evidence indicating claimed to have stolen 2.56 TB of data. Under the Exfiltration tactic, the analysis identified Exfiltration Over Alternative Protocol: Exfiltration Over Unencrypted/Obfuscated Non-C2 Protocol (T1048.003) with moderate to high confidence (85%), supported by evidence indicating 2.56 TB data exfiltration (likely via non-standard channels). Under the Impact tactic, the analysis identified Data Encrypted for Impact (T1486) with moderate to high confidence (70%), supported by evidence indicating qilin ransomware gang (known for encryption + extortion) and Data Destruction (T1485) with moderate confidence (50%), supported by evidence indicating ransomware attack (potential for destructive actions). These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.