This record tracks a ransomware attack claimed by the
direwolf group against
🇯🇵
MITACHI. 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.
329days open
t1 · Published
t2 · Pending
Indexed by Breach House
October 15, 2026
Leak Status
leaked
checked 2026-10-15
Disclosed / Notified
Not disclosed yet
Attack Summary
mitachi.co.jp operates within the IT sector and is based in Japan. The entity is documented within this threat-intelligence index under the listing type ransomware victim, with Direwolf identified as the associated threat actor or source. No specific incident details, such as data stolen, affected systems, or ransom demands, are included to maintain factual accuracy and neutrality. This entry serves to catalog the relationship between the entity and the identified threat actor for monitoring and intelligence purposes. The listing reflects the assessed association without confirming unverified claims about the nature or scope of any incident.
Leak Screenshots
1 CAPTURED
Captured directly from the operator's leak site by our collector, last checked 2026-10-15. Verdict evidence: [M1] Published: 2025-11-20
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Dark Web Exposure
Findings for mitachi.co.jp
— indexed by HaveIBeenRansom.
0
found in Infostealer logs
34+
found in Traditional breaches
2+
found in Ransomware leaks
pureincubation-com.7z.001
Database World ROC · 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
AshleyMadison_BF.7z
TheUnderground - Reborn · breach
••• emails
TheUnderground - Reborn · breach
••• emails
B F R e p o V 3 F i l e s · breach
••• emails
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