Nishiyama Seisakusho
Attack Intelligence
Nishiyama Seisakusho was compromised in a ransomware attack attributed to THEGENTLEMEN in February 2026. The organization, operating in an undisclosed sector in Japan, was added to the group's data leak site as part of an extortion campaign.
THEGENTLEMEN operates as a financially motivated ransomware-as-a-service (RaaS) operation, exfiltrating sensitive data and threatening public disclosure to pressure victims into paying ransom demands.
nishiyama-ss.co.jp zoominfo.com/c/nishiyama-seisakusho-co-ltd/482975122 Nishiyama Seisakusho Co., Ltd. specializes in the production of precision machinery and components, particularly focusing on high-quality manufacturing since its establishment in 1949. The company offers a range of products including precision gears and mechanical parts, catering to various industries. Their intended clients include businesses in need of reliable and precise mechanical solutions. With a commitment to quality