This record tracks a ransomware attack claimed by the
lynx group against
Marukai. 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.
-68days
t1 · Published
t2 · Disclosed
Business Category
Retail / E-commerce
Published
January 21, 2025
Disclosed / Notified
Nov 15, 2024
Attack Summary
Established in 1965, Marukai Corporation (d.b.a Tokyo Central) opened up its business as one of the first international Japan-based retailers in the US market. Since its early days, Marukai has been striving to serve local customers with expanding to multiple retail locations.
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 marukai.com
— indexed by HaveIBeenRansom.
3
found in Infostealer logs
276+
found in Traditional breaches
105+
found in Ransomware leaks
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+ 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.