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Infoworld Membership Systems

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This record tracks a ransomware attack claimed by the play group against Infoworld Membership Systems. 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.

135days open
t1 · Published t2 · Pending
Apr 20, 2026Not disclosed yet
Country
Business Category
Other
Employees
51-100
Discovered
2026-05-12
Published
April 20, 2026
Disclosed / Notified
Not disclosed yet
Victim ID
8q6JH74eVmZ6

Attack Summary

United States

Leak Screenshots

1 CAPTURED

Captured directly from the operator's leak site by our collector.

Leak site capture 2026-09-02
2026-09-02
Showing the latest capture only
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What's In This Leak

Composition analysis from Have I Been Ransom · ransomware leak.
125,218
Records
8
File types
YES
Identity documents present
csv 72,876 records · 129 files
databases 36,538 records · 461 files
•••• •••••••• records · ••••• files
•••• •••••••• records · ••••• files
•••• •••••••• records · ••••• files
•••• •••••••• records · ••••• files
•••• •••••••• records · ••••• files
Emails
•••••••
Corporate
••••••
••%
Personal
••••••
••%
Identity documents
••••
••% of records
Full composition is locked
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Dark Web Exposure

Findings for imsmars.com — indexed by HaveIBeenRansom.
0
found in Infostealer logs
40+
found in Traditional breaches
0+
found in Ransomware leaks
VerificationsIO_BF.7z.011
Kedr | Forum 🪾 · breach
••• emails
pureincubation-com.7z.001
Database World ROC · breach
••• emails
OH.csv
Durov · breach
••• emails
att.7z
Durov · breach
••• emails
AT&T 5 Million Leaked Database.7z
Database World ROC · breach
••• emails
B F R e p o V 3 F i l e s · breach
••• emails
Durov · breach
••• emails
DL| Database catalog · breach
••• emails
+ 10 more leak sources locked
Leak volumes are locked
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Want the complete picture — passwords, machines, full leak files? It's all searchable on HaveIBeenRansom.
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Legal Disclaimer: This ransomware victim record reflects information published on the operator's leak site. Breach.house only records what the operators themselves publish in the open. We take screenshots of their public pages and keep the proof material they post there, so that a listing can be verified and its status tracked over time. We do not purchase data, we do not solicit or encourage its publication, we do not access any private system, and we do not alter anything we record. Nothing is offered for download here, and detailed content is not published on this page or anywhere else on the public site: access to it is restricted to vetted customers under contract, for incident response, due diligence and cyber-resilience work. Breach.house is not affiliated with, and does not act on behalf of, the operators who publish this material. If you represent an organisation or individual named here and want a record reviewed or removed, contact us and we will act on it.