This record tracks a ransomware attack claimed by the
qilin group against
Yapi Teknik Proje. 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.
-19days
t1 · Published
t2 · Disclosed
Business Category
Communication / Marketing
Disclosed / Notified
Jun 27, 2025
Attack Summary
Yapı Teknik was established in Istanbul in 1988 to operate in the static design & project planning and implementation of reinforced concrete, steel and timber structures in all national and international fields.
Yapı Teknik, with its qua ...
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 yapiteknikproje.com
— indexed by HaveIBeenRansom.
0
found in Infostealer logs
8
found in Traditional breaches
0
found in Ransomware leaks
@BreachedData1 LinkedIn 2021-23 Cleaned.7z.001
Database World ROC · breach
••• emails
AntiPublic_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
Collection1_BF.7z.003
formaceft_db · breach
••• emails
Cit0day [cit0day.in] breaches.csv
LKnet reserve chat · breach
••• emails
LinkedIn.com.txt
Database World ROC · breach
••• emails
Leak volumes are 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.