This record tracks a ransomware attack claimed by the
lockbit3 group against
gptchb.org. 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.
-54days
t1 · Published
t2 · Disclosed
Business Category
Healthcare / Pharma
Disclosed / Notified
May 25, 2024
Attack Summary
Established in 1986, the Great Plains Tribal Leaders' Health Board (GPTLHB) is an organization representing the 18 tribal communities in the four-state region of South Dakota, North Dakota, Nebraska, and Iowa. Through public health practices and...
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 gptchb.org
— indexed by HaveIBeenRansom.
0
found in Infostealer logs
450+
found in Traditional breaches
62+
found in Ransomware leaks
limeleads_breach.7z
TheUnderground - Reborn · breach
••• emails
pureincubation-com.7z.001
Database World ROC · breach
••• emails
National Business Furniture
medusa · ransomware
••• emails
VerificationsIO_BF.7z.011
Kedr | Forum · breach
••• emails
Apollo.io DB 816millions.rar
Database World ROC · breach
••• emails
linkedIN_2.7z.001
Database World ROC · breach
••• emails
LinkedIn.com.txt
Database World ROC · breach
••• emails
@BreachedData1 LinkedIn 2021-23 Cleaned.7z.001
Database World ROC · breach
••• emails
+ 17 more leak sources locked
Leak volumes are locked
Sign in to reveal how many records each source exposed and the remaining 20 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.