U.S. Immigration and Customs Enforcement (ICE) Breach Incident Score: Analysis & Impact (US-CUSU-S1768592906)

In this Rankiteo incident briefing, we review the U.S. Immigration and Customs Enforcement (ICE) breach identified under incident ID US-CUSU-S1768592906.

The analysis begins with a detailed overview of U.S. Immigration and Customs Enforcement (ICE)'s information like the linkedin page: https://www.linkedin.com/company/u-s-immigration-and-customs-enforcement-ice, the number of followers: 233392, the industry type: Law Enforcement and the number of employees: 1791 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 730 and after the incident was 572 with a difference of -158 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 U.S. Immigration and Customs Enforcement (ICE) and their customers.

On 13 January 2026, ICE List Wiki disclosed DDoS issues under the banner "Cyberattack Targets ICE List Wiki Ahead of Federal Agent Data Leak".

A major cyberattack disrupted the ICE List Wiki, a Netherlands-based activist platform, just as it prepared to publish the identities of thousands of U.S.

The disruption is felt across the environment, affecting ICE List Wiki servers, and exposing Names, personal phone numbers, and work histories of ~4,500 ICE and Border Patrol employees, with nearly 4,500 records at risk.

In response, moved swiftly to contain the threat with measures like Migration to more secure servers, while recovery efforts such as Site resumed operations continue.

The case underscores how Ongoing.

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 Exploit Public-Facing Application (T1190) with lower confidence (40%), supported by evidence indicating iCE List Wiki servers were targeted by DDoS attack. Under the Impact tactic, the analysis identified Network Denial of Service (T1498) with high confidence (90%), supported by evidence indicating sustained distributed denial-of-service (DDoS) attack...flooding its servers and Endpoint Denial of Service: Service Exhaustion Flood (T1499.002) with moderate to high confidence (80%), supported by evidence indicating flooding its servers with malicious traffic and forcing it offline. Under the Defense Evasion tactic, the analysis identified Proxy (T1090) with moderate to high confidence (80%), supported by evidence indicating true source remains obscured by proxy networks and Dynamic Resolution: Domain Generation Algorithms (T1568.002) with moderate confidence (50%), supported by evidence indicating sophistication of the assault suggests a coordinated effort. Under the Collection tactic, the analysis identified Data from Information Repositories (T1213) with high confidence (90%), supported by evidence indicating leaked data...includes names, personal phone numbers, and work histories. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate to high confidence (70%), supported by evidence indicating data provided by a Department of Homeland Security (DHS) whistleblower. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.