This record tracks a ransomware attack claimed by the
tengu group against
Sileno Companies Inc. 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.
182days open
t1 · Published
t2 · Pending
Business Category
Hospitality / Food & Beverage / Tourism
Disclosed / Notified
Not disclosed yet
Attack Summary
Sileno Companies Inc. A US company primarily operating in the hospitality and real estate sectors, its activities include: Hotel operation Property management Management of hotels' restaurants and bars Hospitality project development 22.9TB was encrypted in 14 hours on 3/5/2026 More than 67.07 GB was extracted
Leak Screenshots
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Dark Web Exposure
Findings for sileno.com
— indexed by HaveIBeenRansom.
3
found in Infostealer logs
6
found in Traditional breaches
0
found in Ransomware leaks
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