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nhk.or.jp 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 impacting the nhk.or.jp domain, with a high risk score of 95. The primary concern stems from 7,831 historical data breaches and 1,561 active infostealer logs, affecting a total of 9,392 clients and 1,064 employees. The data breaches are predominantly linked to "Combolist sources" (95.6%), suggesting compromised credentials. Infostealer activity is dominated by LummaC2, Redline, and Rhadamanthys malware families, observed across various Windows operating systems. The targeted services are primarily related to the "pid.nhk.or.jp" domain, which handles account registration and login functions, indicating a potential for credential stuffing attacks or direct compromise of user accounts.

Total Events

9,392
credential exposure events

Employee Affected Events

1,064
account email domain = nhk.or.jp

Client Affected Events

8,328
service target = nhk.or.jp

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12-Month Events Timeline

Event volume by breach date, employee VS client

EmployeesClients
2,5001,6678330
peak month 2,028
Jul 25Sep 25Nov 25Jan 26Mar 26May 26Jun 26

Infostealers VS Data Breaches

Live stealer logs VS data breaches

Infostealer logs
Events1,561
Share17%
Data breaches
Events7,831
Share83%
Infostealer logs (17%)
1,561events
Data breaches (83%)
7,831events

1,064 compromised employee accounts pose an infrastructure risk, while 8,328 leaked client credentials create regulatory liability.

Antivirus Distribution

Security Tools on Infected Endpoints

Windows Defender14
Windows Defender セキュリティエージェント1
ノートン 3601

Malware Families Distribution

Distribution of Active Stealer Strains

LummaC2220
Redline220
Rhadamanthys180
Acreed122
Vidar52
StealC19
Millenium17
Remus16
Raccoon14

Top Login URLs

Top exposed services found in the event results

  1. 1https://pid.nhk.or.jp/account/regist/id/input.do1,178
  2. 2https://pid.nhk.or.jp939
  3. 3https://pid.nhk.or.jp/account/regist/id/input1.do874
  4. 4pid.nhk.or.jp848
  5. 5pid.nhk.or.jp/account/regist/id/input.do766
  6. 6pid.nhk.or.jp/account/regist/id/input1.do677
  7. 7https://pid.nhk.or.jp/account/update/info.do206
  8. 8https://hh.pid.nhk.or.jp/pidh02/loginform.do203
  9. 9https://hh.pid.nhk.or.jp184
  10. 10https://pid.nhk.or.jp/184

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
Events728
United States
Events24
China
Events21
Taiwan
Events21
Australia
Events21
Thailand
Events11
India
Events9
Netherlands
Events7

Country Breakdown

  1. 1Japan728
  2. 2United States24
  3. 3China21
  4. 4Taiwan21
  5. 5Australia21
  6. 6Thailand11
  7. 7India9
  8. 8Netherlands7

Services Classification Distribution

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

-
Total

Operating System Distribution

Distribution of compromised endpoint builds

Windows 11188
Windows 11 24H2 build 26100 (64 Bit)99
Windows 10 Enterprise x6481
Windows 10 Home x6447
Windows 10 22H2 build 19045 (64 Bit)39

Leak Repository Classification

Where the exposed records currently reside

0
Named breaches
7,488
Combolist pools
343
Unattributed dumps

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