This record tracks a ransomware attack claimed by the
nightspire group against
Ueno Fine Chemicals Industry. 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 GAP
Window 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.
110days open
t1 · Published
t2 · Pending
Business Category
Manufacturing / Engineering
Disclosed / Notified
Not disclosed yet
Attack Summary
Ueno Fine Chemicals Industry Ltd. is a Japan-based manufacturing company with operations in Thailand and other markets, and its English site presents the company’s business profile and product information. The company develops and manufactures chemical products and LCP-related materials, with research, production, and quality-control functions across its operations. Its Thailand business is described as serving food additives and chemical products, reflecting a broader industrial and engineering-oriented manufacturing footprint. It was listed as a ransomware victim associated with nightspire.
Leak Screenshots
SAMPLE
Proof-of-breach screenshots the operator posted from the stolen data. Previews are
redacted and locked — the originals are available on HaveIBeenRansom.
Dark Web Exposure
Findings for ueno-fc.co.jp
— indexed by HaveIBeenRansom.
0
found in Infostealer logs
21+
found in Traditional breaches
16+
found in Ransomware leaks
BELL DATA, Inc
medusa · ransomware
••• emails
Cit0day [cit0day.in] breaches.csv
LKnet reserve chat · breach
••• emails
OnlinerSpambot_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
2844Breaches_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
Dropbox_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
B F R e p o V 3 F i l e s · breach
••• emails
Database World ROC · breach
••• emails
+ 3 more leak sources locked
Leak volumes are locked
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