This record tracks a ransomware attack claimed by the
everest group against
DESY. 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.
-42days
t1 · Published
t2 · Disclosed
Business Category
Public Sector
Published
January 05, 2026
Disclosed / Notified
Nov 25, 2025
Attack Summary
[AI generated] DESY, short for Deutsches Elektronen-Synchrotron, is a German research center funded by the Federal Republic of Germany, the states of Germany, and the German Research Foundation. Established in 1959 and based in Hamburg, it operates particle accelerators that are used to investigate the structure and function of matter. The center undertakes research in the fields of physics, photon science, nanotechnology, and much more.
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 desy.de
— indexed by HaveIBeenRansom.
54
found in Infostealer logs
2,951+
found in Traditional breaches
49+
found in Ransomware leaks
Cit0day [cit0day.in] breaches.csv
LKnet reserve chat · breach
••• emails
Apollo.io DB 816millions.rar
Database World ROC · breach
••• emails
VerificationsIO_BF.7z.011
Kedr | Forum · breach
••• emails
OnlinerSpambot_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
limeleads_breach.7z
TheUnderground - Reborn · breach
••• emails
Dropbox_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
@BreachedData1 LinkedIn 2021-23 Cleaned.7z.001
Database World ROC · breach
••• emails
linkedIN_2.7z.001
Database World ROC · breach
••• emails
+ 17 more leak sources locked
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.