This record tracks a ransomware attack claimed by the
thegentlemen group against
East. 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.
120days open
t1 · Published
t2 · Pending
Disclosed / Notified
Not disclosed yet
Attack Summary
east-inc.jp zoominfo.com/c/east/5000054099 East Inc. is a Japanese company headquartered in Tokyo that provides comprehensive outsourcing services for commercial facilities — shopping malls, outlet parks, and office complexes — covering everything from day-to-day operations to system development, website management, and information services. The company has an impressive track record of over 800 commercial facilities nationwide across Japan, with clients including Roppongi Hills, Nihonbashi Takashimaya S.C., Mitsui Outlet Parks, and Ebisu Garden Place. Since 2007, East Inc. has also been supporting Japanese companies expanding into China, offering systems and operational know-how for overseas operations
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 east-inc.jp
— indexed by HaveIBeenRansom.
0
found in Infostealer logs
75+
found in Traditional breaches
0+
found in Ransomware leaks
Dropbox_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
Peatix_BF.7z
B F R e p o V 3 F i l e s · breach
••• 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
Japan.rar
🇷🇺Alexei Error504🇷🇺 · breach
••• emails
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
TheUnderground - Reborn · breach
••• emails
+ 10 more leak sources locked
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