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tripadvisor.de Domain Breach Exposure Report

Risk Score

High Risk

Massive event volume or critical assets compromised.

AI Findings Summary

Critical

The telemetry indicates a significant exposure event affecting tripadvisor.de, with a high volume of historical data breaches (3992) and active infostealer logs (498) observed between July 2025 and June 2026. The majority of these events are linked to "Combolist sources" within leak repositories, suggesting compromised credentials. The data breaches and infostealer activity primarily target client accounts, with a notable increase in employee-related events in early 2026. Malware families such as LummaC2, Redline, and Rhadamanthys are frequently identified, often associated with Windows 11 operating systems. The exposure is concentrated in Germany, Austria, and Italy, with targeted services including the main domain and registration controllers.

Total Events

4,490
credential exposure events

Employee Affected Events

79
account email domain = tripadvisor.de

Client Affected Events

4,411
service target = tripadvisor.de

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12-Month Events Timeline

Event volume by breach date, employee VS client

EmployeesClients
1,5001,0005000
peak month 1,202
Jul 25Sep 25Nov 25Jan 26Mar 26May 26Jun 26

Infostealers VS Data Breaches

Live stealer logs VS data breaches

Infostealer logs
Events498
Share11%
Data breaches
Events3,992
Share89%
Infostealer logs (11%)
498events
Data breaches (89%)
3,992events

79 compromised employee accounts pose an infrastructure risk, while 4,411 leaked client credentials create regulatory liability.

Antivirus Distribution

Security Tools on Infected Endpoints

Windows Defender67

Malware Families Distribution

Distribution of Active Stealer Strains

LummaC268
Redline59
Rhadamanthys48
Acreed45
X-Files16
Blank Grabber9
Millenium6
Vidar5
StealC3

Top Login URLs

Top exposed services found in the event results

  1. 1tripadvisor.de557
  2. 2https://www.tripadvisor.de/RegistrationController520
  3. 3https://tripadvisor.de377
  4. 4https://www.tripadvisor.de374
  5. 5tripadvisor.de/RegistrationController371
  6. 6www.tripadvisor.de/RegistrationController227
  7. 7www.tripadvisor.de215
  8. 8tripadvisor.de/registrationcontroller172
  9. 9https://www.tripadvisor.de/registrationcontroller115
  10. 10https://tripadvisor.de/RegistrationController112

Infostealer By Geography

Shows the distribution of Infostealer-related credential exposure events across different geographic regions. The location is determined by analyzing the metadata of the infected machines associated with each event.

Germany
Events168
Austria
Events69
Italy
Events24
Ecuador
Events22
United States
Events21
Japan
Events8
Netherlands
Events6
Thailand
Events4

Country Breakdown

  1. 1Germany168
  2. 2Austria69
  3. 3Italy24
  4. 4Ecuador22
  5. 5United States21
  6. 6Japan8
  7. 7Netherlands6
  8. 8Thailand4

Services Classification Distribution

Blast radius - closer to core = more critical infrastructure, size = credential volume

-
Total

Operating System Distribution

Distribution of compromised endpoint builds

Windows 11104
Windows 11 23H2 build 22631 (64 Bit)45
Windows 10 Enterprise x6422
Windows 1022
Windows 11 (Build 26300) (64 Bit)13

Leak Repository Classification

Where the exposed records currently reside

0
Named breaches
3,990
Combolist pools
2
Unattributed dumps

Disclaimer: This report includes AI-generated content. AI can make mistakes, so verify important findings independently before taking action.