HIGASHIYAMA INDUSTRIES Co.,Ltd.
qilinThis record tracks a ransomware attack claimed by the qilin group against HIGASHIYAMA INDUSTRIES Co.,Ltd.. It collects the publicly disclosed attack details — sector, location and timeline — as published on the operator's leak site and indexed by Breach House.
Window Zero
EXPOSURE GAPWindow Zero is the time the breach stayed in the open before anyone said so — the gap between when the attack was first discovered on the operator's leak site (t1) and when it was publicly disclosed (t2). The wider this window, the longer victims, staff and customers were exposed with no warning.
Attack Summary
The organization HIGASHIYAMA INDUSTRIES Co.,Ltd. appears on the qilin ransomware leak site. It operates in the Manufacturing / Engineering sector and is estimated to employ around 101-1000 people. The affected entity is based in Japan. The attack was first observed on April 10, 2026 and published on the group's leak site on April 09, 2026. The entry is documented by Breach House from public leak-site sources and is provided for situational awareness only.
Leak Screenshots
SAMPLEProof-of-breach screenshots the operator posted from the stolen data. Previews are redacted and locked — the originals are available on HaveIBeenRansom.