This record tracks a ransomware attack claimed by the
thegentlemen group against
imas. 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.
0days open
t1 · Discovered
t2 · Pending
Business Category
Communication / Marketing
Indexed by Breach House
November 11, 2026
Leak Status
pending
checked 2026-11-11
Disclosed / Notified
Not disclosed yet
Attack Summary
IMAS is a Spanish communication and marketing research firm headquartered in Spain. The company provides audience measurement, media analytics, and consumer insights services to advertisers, broadcasters, and media organizations across Europe. IMAS operates as part of the broader IMAS-Worldwide network, delivering research on television, radio, digital media, and advertising effectiveness. The organization was listed as a ransomware victim associated with the Gentlemen threat actor, a group known for targeting mid-sized enterprises across multiple sectors.
Leak Screenshots
1 CAPTURED
Captured directly from the operator's leak site by our collector, last checked 2026-11-11. Verdict evidence: [M1] Activates in 238:53:05
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Dark Web Exposure
Findings for imas.es
— indexed by HaveIBeenRansom.
487
found in Infostealer logs
195+
found in Traditional breaches
1+
found in Ransomware leaks
148GB (195).txt
DBs Backup · breach
••• emails
Log_Pass_2.txt
DBs Backup · breach
••• emails
148GB (210).txt
DBs Backup · breach
••• emails
naz.api.rar
DBs w MTDT · breach
••• emails
naz.api.rar
DBs w MTDT · breach
••• emails
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