nicovideo.jp Domain Breach Exposure Report
Risk Score
Massive event volume or critical assets compromised.
AI Findings Summary
The telemetry indicates a significant exposure event impacting nicovideo.jp, with over 328,000 historical data breaches and nearly 49,000 active infostealer logs detected within the reporting period. The majority of these events are linked to "Combolist sources," suggesting compromised credentials. The timeline shows a notable increase in employee-related events in early to mid-2026, coinciding with a surge in client-related incidents. Malware families such as Rhadamanthys, LummaC2, and Redline are prevalent, indicating active credential harvesting and potential further compromise. The targeted services are primarily related to account login, reinforcing the credential compromise theme.
Total Events
Employee Affected Events
Client Affected Events
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12-Month Events Timeline
Event volume by breach date, employee VS client
Infostealers VS Data Breaches
Live stealer logs VS data breaches
97 compromised employee accounts pose an infrastructure risk, while 377,524 leaked client credentials create regulatory liability.
Antivirus Distribution
Security Tools on Infected Endpoints
Malware Families Distribution
Distribution of Active Stealer Strains
Top Login URLs
Top exposed services found in the event results
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.
Country Breakdown
Services Classification Distribution
Blast radius - closer to core = more critical infrastructure, size = credential volume
Operating System Distribution
Distribution of compromised endpoint builds
Leak Repository Classification
Where the exposed records currently reside
Disclaimer: This report includes AI-generated content. AI can make mistakes, so verify important findings independently before taking action.