This record tracks a ransomware attack claimed by the
akira group against
Ostrolenk Faber. 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.
-73days
t1 · Published
t2 · Disclosed
Business Category
Communication / Marketing
Published
October 14, 2025
Disclosed / Notified
Aug 02, 2025
Attack Summary
Ostrolenk Faber LLP is a premier intellectual property boutique l
aw firm that has been specializing in domestic and international
intellectual property legal matters since 1929.
We are ready to upload more than 43gb of corporate documents. Emp
loyees personal documents, scans of customer documents (SSNs, nam
e, DOB, address and so on), project files, lots of client informa
tion, financials, confidential project files, contracts and agree
ments, NDAs, etc.
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 ostrolenk.com
— indexed by HaveIBeenRansom.
0
found in Infostealer logs
531+
found in Traditional breaches
102+
found in Ransomware leaks
limeleads_breach.7z
TheUnderground - Reborn · breach
••• emails
VerificationsIO_BF.7z.011
Kedr | Forum · breach
••• emails
CSCGLOBAL.COM
clop · ransomware
••• emails
pureincubation-com.7z.001
Database World ROC · breach
••• emails
Apollo.io DB 816millions.rar
Database World ROC · breach
••• emails
linkedIN_2.7z.001
Database World ROC · breach
••• emails
@BreachedData1 LinkedIn 2021-23 Cleaned.7z.001
Database World ROC · breach
••• emails
OnlinerSpambot_BF.7z
B F R e p o V 3 F i l e s · 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.