This record tracks a ransomware attack claimed by the
alphv group against
Kendall Hunt Publishing. 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.
1210days open
t1 · Published
t2 · Pending
Business Category
Communication / Marketing
Published
February 22, 2023
Disclosed / Notified
Not disclosed yet
Attack Summary
Founded in 1944, Kendall Hunt Publishing is a publisher of hands-on, inquiry-based science, mathematics, and gifted curricula for grades PreK-12. Their research and standards-based programs are available in both print and digital components that encompass students
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 kendallhunt.com
— indexed by HaveIBeenRansom.
528
found in Infostealer logs
1,738+
found in Traditional breaches
227+
found in Ransomware leaks
pureincubation-com.7z.001
Database World ROC · breach
••• emails
VerificationsIO_BF.7z.011
Kedr | Forum · breach
••• emails
Apollo.io DB 816millions.rar
Database World ROC · breach
••• emails
limeleads_breach.7z
TheUnderground - Reborn · breach
••• emails
Access Intelligence
play · ransomware
••• emails
OnlinerSpambot_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
@BreachedData1 LinkedIn 2021-23 Cleaned.7z.001
Database World ROC · breach
••• emails
CSCGLOBAL.COM
clop · ransomware
••• 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.