This record tracks a ransomware attack claimed by the
lockbit3 group against
knvb.nl. 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.
1159days open
t1 · Published
t2 · Pending
Business Category
NGOs / Associations
Disclosed / Notified
Not disclosed yet
Attack Summary
305gb.The Royal Dutch Football Association is the governing body of football in the Netherlands. It organises the main Dutch football leagues, the amateur leagues, the KNVB Cup, and the Dutch men's and women's national teams.
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 knvb.nl
— indexed by HaveIBeenRansom.
92
found in Infostealer logs
1,822+
found in Traditional breaches
6+
found in Ransomware leaks
Apollo.io DB 816millions.rar
Database World ROC · breach
••• emails
limeleads_breach.7z
TheUnderground - Reborn · breach
••• emails
@BreachedData1 LinkedIn 2021-23 Cleaned.7z.001
Database World ROC · breach
••• emails
pureincubation-com.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
VerificationsIO_BF.7z.011
Kedr | Forum · breach
••• emails
AntiPublic_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
Ticketcounter_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.