This record tracks a ransomware attack claimed by the
clop group against
MONTALBAARCHITECTS.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.
269days open
t1 · Published
t2 · Pending
Business Category
Communication / Marketing
Indexed by Breach House
January 25, 2026
Disclosed / Notified
Not disclosed yet
Attack Summary
[AI generated] MONTALBA ARCHITECTS, INC. is a Swiss and American-based architecture firm founded by David Montalba. With offices in Santa Monica, California and Lausanne, Switzerland, they handle both residential and commercial projects. Known for their attention to detail, spatial fluidity, and creative use of light, they have won numerous design awards. They also prioritize environmentally-friendly solutions.
Leak Screenshots
1 CAPTURED
Captured directly from the operator's leak site by our collector, last checked 2026-09-29. Verdict evidence: [H1] Victim magnet link available
Showing the latest capture only
Unlock the daily capture history — up to 45 days of evidence.
What's In This Leak
Composition analysis from Have I Been Ransom · ransomware leak.
YES
Identity documents present
pdf
635
records · 171 files
xlsx
109
records · 1 files
••••
••••••••
records · ••••• files
••••
••••••••
records · ••••• files
••••
••••••••
records · ••••• files
••••
••••••••
records · ••••• files
Identity documents
••••
••% of records
Full composition is locked
Unlock the remaining 4 file type(s), the corporate vs personal email split and the identity-document analysis.
Dark Web Exposure
Findings for montalbaarchitects.com
— indexed by HaveIBeenRansom.
0
found in Infostealer logs
356+
found in Traditional breaches
213+
found in Ransomware leaks
MONTALBAARCHITECTS.COM
clop · ransomware
••• emails
limeleads_breach.7z
TheUnderground - Reborn · breach
••• emails
Apollo.io DB 816millions.rar
Database World ROC · breach
••• emails
VerificationsIO_BF.7z.011
Kedr | Forum · breach
••• emails
pureincubation-com.7z.001
Database World ROC · breach
••• emails
Database World ROC · breach
••• emails
Database World ROC · breach
••• emails
+ 17 more leak sources locked
Leak volumes are locked
Sign in to reveal how many records each source exposed and the remaining 20 sources.
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.
