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kosmas.cz

lynx

This record tracks a ransomware attack claimed by the lynx group against kosmas.cz. 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.

486days open
t1 · Published t2 · Pending
May 04, 2025Not disclosed yet
Country
Business Category
Retail / E-commerce
Employees
51-100
Discovered
2025-05-28
Published
May 04, 2025
Disclosed / Notified
Not disclosed yet
Victim ID
FxzM5X6pR8Kv

Attack Summary

Online bookstore Kosmas.cz

Leak Screenshots

25 CAPTURED

Captured directly from the operator's leak site by our collector.

Proof files published by the operator — 24 image(s) harvested from this entry. Content is locked; type and dimensions shown.

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Showing the latest capture only
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Dark Web Exposure

Findings for kosmas.cz — indexed by HaveIBeenRansom.
395
found in Infostealer logs
62+
found in Traditional breaches
0+
found in Ransomware leaks
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
Расшифровка Badoo.com [25,8kk].rar
Misha-z88 DB · breach
••• emails
AntiPublic_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
Canva_BF_.7z.001
Database World ROC · breach
••• emails
TheUnderground - Reborn · breach
••• emails
Formaceft db · breach
••• emails
B F R e p o V 3 F i l e s · breach
••• emails
+ 9 more leak sources locked
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Visit Website Original Post View Group: lynx
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