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zozo.jp Domain Breach Exposure Report

Risk Score

High Risk

Massive event volume or critical assets compromised.

AI Findings Summary

Critical

The domain zozo.jp has experienced a high-risk score of 87, primarily driven by a significant volume of historical data breaches (79.7%) and active infostealer logs (20.3%) over the past year. The data breaches suggest a past compromise affecting approximately 14,895 clients, while infostealer activity indicates ongoing threats targeting credentials. The timeline shows a notable increase in both employee and client-related events in March and April 2026, coinciding with elevated infostealer activity. Malware families like Vidar, LummaC2, and Rhadamanthys are frequently observed, known for their credential-stealing capabilities. The targeted services include login and registration pages for zozo.jp, indicating a focus on user account compromise. The majority of observed activity originates from Japan, with smaller amounts from Taiwan and Vietnam.

Total Events

18,700
credential exposure events

Employee Affected Events

93
account email domain = zozo.jp

Client Affected Events

18,607
service target = zozo.jp

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12-Month Events Timeline

Event volume by breach date, employee VS client

EmployeesClients
5,0003,3331,6670
peak month 4,820
Jul 25Sep 25Nov 25Jan 26Mar 26May 26Jun 26

Infostealers VS Data Breaches

Live stealer logs VS data breaches

Infostealer logs
Events3,805
Share20%
Data breaches
Events14,895
Share80%
Infostealer logs (20%)
3,805events
Data breaches (80%)
14,895events

93 compromised employee accounts pose an infrastructure risk, while 18,607 leaked client credentials create regulatory liability.

Antivirus Distribution

Security Tools on Infected Endpoints

Windows Defender189
Windows Defender マカフィー ウイルススキャン12
Unknown6
ESET4
Windows Defender マカフィー3
Windows Defender ウイルスバスター クラウド2
Windows Defender マカフィー セキュリティエージェント2
Windows Defender.2
Reason Cybersecurity2

Malware Families Distribution

Distribution of Active Stealer Strains

Vidar681
LummaC2545
Rhadamanthys421
Redline310
Acreed196
Millenium47
Raccoon46
Remus30
StealC21

Top Login URLs

Top exposed services found in the event results

  1. 1https://zozo.jp2,524
  2. 2https://zozo.jp/_member/login.html2,512
  3. 3zozo.jp2,352
  4. 4zozo.jp/_member/login.html1,644
  5. 5https://zozo.jp/1,521
  6. 6https://zozo.jp/_member/regist/1,043
  7. 7zozo.jp/915
  8. 8zozo.jp/_member/regist/488
  9. 9https://zozo.jp/_cart/order/member.html470
  10. 10https://zozo.jp/sp/_member/login.html372

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.

Japan
Events2,090
Taiwan
Events43
Vietnam
Events35
United States
Events33
South Korea
Events24
China
Events12

Country Breakdown

  1. 1Japan2,090
  2. 2Taiwan43
  3. 3Vietnam35
  4. 4United States33
  5. 5Hong Kong SAR China29
  6. 6South Korea24
  7. 7Côte d’Ivoire16
  8. 8China12

Services Classification Distribution

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

-
Total

Operating System Distribution

Distribution of compromised endpoint builds

Windows 11 Pro605
Windows 11299
Windows 11 24H2 build 26100 (64 Bit)224
Windows 10 22H2 build 19045 (64 Bit)189
Windows 11 Home (10.0.26100) x6486

Leak Repository Classification

Where the exposed records currently reside

0
Named breaches
14,892
Combolist pools
3
Unattributed dumps

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