This record tracks a ransomware attack claimed by the
lapsus$ group against
OSAC Aero. 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.
-55days
t1 · Published
t2 · Disclosed
Business Category
Communication / Marketing
Disclosed / Notified
Jan 06, 2026
Attack Summary
[AI generated] "OSAC Aero" is a Spanish aeronautical engineering company. They provide aeronautical consulting services, product development, aircraft maintenance, and also focus on designing, prototyping, and manufacturing aerostructures. Their innovative solutions have established OSAC as a reliable partner for leading global aerospace organizations.
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 osac.aero
— indexed by HaveIBeenRansom.
45
found in Infostealer logs
126+
found in Traditional breaches
7+
found in Ransomware leaks
linkedIN_2.7z.001
Database World ROC · breach
••• emails
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
TAPAir_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
TAPAir_BF_.7z.001
Database World ROC · breach
••• emails
Onclusive
play · ransomware
••• emails
Exploit.in.rar
LKnet reserve chat · breach
••• emails
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.