This record tracks a ransomware attack claimed by the
qilin group against
Jacobs & Sons. 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.
-67days
t1 · Published
t2 · Disclosed
Disclosed / Notified
Jan 11, 2026
Attack Summary
Jacobs & Sons was named by the qilin ransomware group as a targeted organization. It operates in the Other sector. The affected entity is based in United States. The incident was first observed on March 18, 2026. This record is maintained by Breach House as part of its ongoing monitoring of public ransomware leak sites.
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 rjuniform.com
— indexed by HaveIBeenRansom.
0
found in Infostealer logs
52+
found in Traditional breaches
2+
found in Ransomware leaks
VerificationsIO_BF.7z.011
Kedr | Forum · breach
••• emails
pureincubation-com.7z.001
Database World ROC · breach
••• emails
Exploit.in.rar
LKnet reserve chat · breach
••• emails
UnderArmour_BF_.7z.001
Database World ROC · breach
••• emails
Arandell Corp
medusa · ransomware
••• emails
ShareThis_BF.7z
TheUnderground - Reborn · breach
••• emails
MySpace_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
+ 7 more leak sources locked
Leak volumes are locked
Sign in to reveal how many records each source exposed and the remaining 10 sources.
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.