This record tracks a ransomware attack claimed by the
killsec group against
Sumitomo. 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.
-63days
t1 · Published
t2 · Disclosed
Published
November 02, 2024
Disclosed / Notified
Sep 01, 2024
Attack Summary
Sumitomo was named by the killsec ransomware group as a targeted organization. It operates in the Other sector. The affected entity is based in South Africa. The incident was first observed on November 02, 2024. Breach House tracks this attack from public ransomware leak-site postings for threat-intelligence purposes.
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 srigroup.co.za
— indexed by HaveIBeenRansom.
0
found in Infostealer logs
52+
found in Traditional breaches
5+
found in Ransomware leaks
pureincubation-com.7z.001
Database World ROC · breach
••• emails
Canva_BF_.7z.001
Database World ROC · breach
••• emails
The Rubber Resources
play · ransomware
••• emails
Canva_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
Cit0day [cit0day.in] breaches.csv
LKnet reserve chat · breach
••• emails
jdgroup_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
McGraw Hill, Inc. (mheducation.com)
shinyhunters · breach
••• emails
Chegg_BF.7z
B F R e p o V 3 F i l e s · 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.