This record tracks a ransomware attack claimed by the
ryuk group against
Sopra Steria. 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.
1day
t1 · Published
t2 · Disclosed
Business Category
Communication / Marketing
Published
October 20, 2020
Disclosed / Notified
Oct 21, 2020
Attack Summary
The organization Sopra Steria appears on the ryuk ransomware leak site. It operates in the Communication / Marketing sector. The affected entity is based in France. The incident was first observed on October 20, 2020.
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 soprasteria.com
— indexed by HaveIBeenRansom.
505
found in Infostealer logs
4,963+
found in Traditional breaches
37+
found in Ransomware leaks
Apollo.io DB 816millions.rar
Database World ROC · breach
••• emails
pureincubation-com.7z.001
Database World ROC · breach
••• emails
limeleads_breach.7z
TheUnderground - Reborn · breach
••• emails
@BreachedData1 LinkedIn 2021-23 Cleaned.7z.001
Database World ROC · breach
••• emails
SevenRooms_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
Televerde
play · ransomware
••• emails
BCD Travel
shinyhunters · breach
••• emails
Canva_BF_.7z.001
Database World ROC · breach
••• emails
+ 13 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.