nikkei.com Domain Breach Exposure Report

The domain nikkei.com has experienced a significant number of data breaches and infostealer events between July 2025 and June 2026, totaling over 20,000 incidents. The majority of these events are classified as historical data breaches (83.1%), with active infostealer logs accounting for the remainder (16.9%). A substantial portion of the data breaches are linked to "Combolist sources" (98.1%), suggesting compromised credentials. Malware families such as LummaC2, Rhadamanthys, and Redline are frequently observed. The targeted services are primarily related to authentication and user accounts on nikkei.com, indicating a focus on credential harvesting. The timeline shows a notable increase in employee and client-related events in early 2026, particularly in January and March. The high volume of data breaches, especially those linked to credential stuffing via combolists, combined with the prevalence of infostealer malware, poses a critical risk to user accounts and potentially sensitive information. The focus on authentication services suggests attackers are attempting to gain unauthorized access to user accounts. Prioritization should be given to investigating the root cause of the data breaches, enhancing authentication mechanisms, and implementing robust credential hygiene practices for both employees and clients. Remediation efforts should concentrate on securing user accounts, monitoring for suspicious login activity, and educating users about phishing and credential compromise risks.