518.com.tw Domain Breach Exposure Report

The domain 518.com.tw has experienced a significant number of data breach events, totaling 41,961, primarily originating from combolist sources. Additionally, there are 6,855 active infostealer logs, with Redline and LummaC2 being the most prevalent malware families observed. The timeline indicates a surge in client-related events in April 2026, with 10,007 clients affected, and a notable increase in employee-related events in March and April 2026, affecting 11 and 51 employees respectively. The targeted services are predominantly related to member login pages on the 518.com.tw domain, and the majority of the observed activity originates from Taiwan. The high volume of historical data breaches and active infostealer logs suggests a high risk of credential compromise and potential further data exfiltration. Given the high risk score of 94 and the prevalence of infostealer activity targeting login portals, immediate focus should be placed on credential hygiene, including mandatory password resets for all employees and clients, and enhanced monitoring for suspicious login attempts. Investigating the root cause of the historical data breaches and securing the identified combolist sources is also critical to prevent future exploitation. The observed malware families, such as Redline and LummaC2, indicate a need for updated endpoint protection and user awareness training regarding phishing and malware threats.