Taiwan Sintong Machinery Co., Ltd Data Breach

Taiwan Sintong Machinery Co., Ltd, a manufacturing company based in Taiwan, has been listed on the Qilin ransomware group’s dark web portal. The listing was published on June 21, 2026, and identified by SOCRadar’s Dark Web Monitoring service. The organization operates within the Manufacturing sector and is one of many entities targeted by Qilin recently.

SOCRadar’s analysis of initial access vectors for Taiwan Sintong Machinery Co., Ltd did not return any direct correlation with their domain (www.twsinto.com.tw) from stealer logs within the queried timeframe. However, this absence of evidence does not confirm the lack of compromise. Credentials could have been obtained through alternative domains, personal email aliases, or logs indexed prior to the query. For ransomware groups like Qilin, infostealer-harvested credentials are a common initial access vector, used to gain access to corporate accounts and systems before deploying ransomware. CTI teams are advised to maintain continuous monitoring and prioritize credential hygiene, as a null query result should not be interpreted as exoneration.