This record tracks a ransomware attack claimed by the
everest group against
Iron Mountain. 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.
-40days
t1 · Published
t2 · Disclosed
Business Category
Services
Published
February 02, 2026
Disclosed / Notified
Dec 25, 2025
Attack Summary
[AI generated] Iron Mountain Incorporated is a global business specializing in storage and information management services. Founded in 1951, based in Boston, Massachusetts, it helps organizations to store, manage, protect, retrieve information and data. Its offerings include records and information management, data backup and recovery, secure shredding, and data centers.
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 ironmountain.com
— indexed by HaveIBeenRansom.
218
found in Infostealer logs
2,712+
found in Traditional breaches
288+
found in Ransomware leaks
VerificationsIO_BF.7z.011
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limeleads_breach.7z
TheUnderground - Reborn · breach
••• emails
Apollo.io DB 816millions.rar
Database World ROC · breach
••• emails
pureincubation-com.7z.001
Database World ROC · breach
••• emails
@BreachedData1 LinkedIn 2021-23 Cleaned.7z.001
Database World ROC · breach
••• emails
Televerde
play · ransomware
••• emails
Qantas Airways Limited
shinyhunters · ransomware
••• emails
Mercer Advisors
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.