This record tracks a ransomware attack claimed by the
rook group against
DENSO. 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.
71days
t1 · Published
t2 · Disclosed
Published
December 28, 2021
Disclosed / Notified
Mar 10, 2022
Attack Summary
DENSO was named by the rook ransomware group as a targeted organization. It operates in the Other sector. The affected entity is based in Japan. The incident was first observed on December 28, 2021.
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 denso.com
— indexed by HaveIBeenRansom.
325
found in Infostealer logs
2,360+
found in Traditional breaches
143+
found in Ransomware leaks
limeleads_breach.7z
TheUnderground - Reborn · breach
••• emails
pureincubation-com.7z.001
Database World ROC · breach
••• emails
Televerde
play · ransomware
••• emails
linkedIN_2.7z.001
Database World ROC · breach
••• emails
Marcus & Millichap, Inc.
shinyhunters · breach
••• emails
contacts_120.csv
Database World ROC · breach
••• emails
Access Intelligence
play · ransomware
••• emails
contacts_102.csv
Database World ROC · breach
••• emails
+ 17 more leak sources locked
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Legal Disclaimer:
This ransomware victim record reflects information published on the operator's leak site.
Breach.house does not acquire, download, host, access or redistribute unlawfully obtained data. It indexes only publicly visible information posted by ransomware, breach and infostealer operators and open web sources, without accessing the underlying stolen content. The service supports public awareness, legitimate research and cyber-resilience.