This record tracks a ransomware attack claimed by the
chaos group against
opportune.com. 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.
-45days
t1 · Published
t2 · Disclosed
Business Category
Finance / Legal / Insurance
Disclosed / Notified
May 24, 2026
Attack Summary
DATA EXPOSURE: Opportune LLP – Full Operational Transparency
We are officially announcing that our security team has successfully breached the internal network of Opportune LLP. As of this moment, we are in possession of the entire Opportune internal data environment—an massive archive containi…
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 zoominfo.com
— indexed by HaveIBeenRansom.
6,897
found in Infostealer logs
2,840+
found in Traditional breaches
160+
found in Ransomware leaks
limeleads_breach.7z
TheUnderground - Reborn · breach
••• emails
pureincubation-com.7z.001
Database World ROC · breach
••• emails
Apollo.io DB 816millions.rar
Database World ROC · breach
••• emails
VerificationsIO_BF.7z.011
Kedr | Forum · breach
••• emails
@BreachedData1 LinkedIn 2021-23 Cleaned.7z.001
Database World ROC · breach
••• emails
CSCGLOBAL.COM
clop · ransomware
••• emails
contacts_103.csv
Database World ROC · breach
••• emails
Marcus & Millichap, Inc.
shinyhunters · breach
••• emails
+ 17 more leak sources locked
Leak volumes are 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.