ecnavi.jp Domain Breach Exposure Report

The domain ecnavi.jp has experienced a significant number of data breach events, totaling 8,162, and 1,533 infostealer events over the observed period. The majority of these events are attributed to historical data breaches, with a notable portion of active infostealer logs also detected. The timeline indicates a surge in client-related events from February 2026 onwards, with a smaller but increasing number of employee-related events also appearing in March 2026. Malware families such as Vidar, Redline, and LummaC2 are prevalent, suggesting a focus on credential harvesting and data exfiltration. The primary targets appear to be login and signup pages associated with the ecnavi.jp domain, with a strong concentration of activity originating from Japan. This exposure presents a high risk due to the sheer volume of historical data breaches and the ongoing threat from infostealer malware. The increasing number of employee and client events, particularly in recent months, indicates a potential compromise of user credentials and sensitive information. Prioritization should focus on immediate remediation of identified vulnerabilities, enhanced monitoring of login and signup endpoints, and comprehensive security awareness training for employees. The prevalence of infostealer malware targeting credential harvesting necessitates a review of authentication mechanisms and data protection policies.