This record tracks a ransomware attack claimed by the
everest group against
Grayscale Investments. 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.
-58days
t1 · Published
t2 · Disclosed
Business Category
Finance / Legal / Insurance
Disclosed / Notified
May 29, 2025
Attack Summary
[AI generated] Grayscale Investments is a digital currency asset management company, founded by Barry Silbert in 2013. It provides secure access to the digital currency asset class through its single-asset and diversified investment products, including Grayscale Bitcoin Trust and Grayscale Digital Large Cap Fund. It operates in the US and has the distinction of managing the largest Bitcoin portfolio.
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 grayscale.com
— indexed by HaveIBeenRansom.
56
found in Infostealer logs
305
found in Traditional breaches
12
found in Ransomware leaks
Grayscale_Investments_LLC_emails.txt
Database World ROC · breach
••• emails
522K Grayscale Emails.txt
Database World ROC · breach
••• emails
linkedIN_2.7z.001
Database World ROC · breach
••• emails
shouldve-paid-the-ransom-betterment-shinyhunters.7z
Database World ROC · breach
••• emails
CSCGLOBAL.COM
clop · ransomware
••• emails
pureincubation-com.7z.001
Database World ROC · breach
••• emails
cutout.pro - @bereza_bd.rar
DataClub · breach
••• emails
Arandell Corp
medusa · ransomware
••• emails
+ 7 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.