This record tracks a ransomware attack claimed by the
thegentlemen group against
Synergy France. 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.
-83days
t1 · Published
t2 · Disclosed
Disclosed / Notified
Jan 16, 2026
Attack Summary
synergy.fr zoominfo.com/c/synergy-france/430369679 Synergy France specializes in data-centric solutions, assisting clients with data management projects, including integration, storage, and transformation in the cloud. They offer services in data analysis, reporting, data visualization, and data science, as well as governance through the establishment of data repositories. The company provides certified training programs in Lille and Paris, tailored to meet the specific needs of businesses
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 synergy.fr
— indexed by HaveIBeenRansom.
2
found in Infostealer logs
103
found in Traditional breaches
6
found in Ransomware leaks
Apollo.io DB 816millions.rar
Database World ROC · breach
••• emails
Cit0day [cit0day.in] breaches.csv
LKnet reserve chat · breach
••• emails
linkedIN_2.7z.001
Database World ROC · breach
••• emails
VerificationsIO_BF.7z.011
Kedr | Forum · breach
••• emails
@BreachedData1 LinkedIn 2021-23 Cleaned.7z.001
Database World ROC · breach
••• emails
Televerde
play · ransomware
••• emails
Dropbox_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
pureincubation-com.7z.001
Database World ROC · breach
••• emails
+ 17 more leak sources 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.