This record tracks a ransomware attack claimed by the
dunghill group against
CannonDesign. 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
Construction / Real Estate
Published
September 26, 2023
Disclosed / Notified
Aug 13, 2023
Attack Summary
CannonDesign is a global architecture, engineering and consulting practice that provides services for a range of project types, including hospitals and medical centers, corporate headquarters and commercial office buildings, higher education and PK-12 education facilities, hotels and hospitality, mixed-use, sports facilities, and science and research buildings. In 2017 and 2019, Fast Company named CannonDesign one of the 10 most innovative architecture firms in the world.
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 cannondesign.com
— indexed by HaveIBeenRansom.
2
found in Infostealer logs
2,634+
found in Traditional breaches
366+
found in Ransomware leaks
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@BreachedData1 LinkedIn 2021-23 Cleaned.7z.001
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••• emails
pureincubation-com.7z.001
Database World ROC · breach
••• emails
Dropbox_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
Cit0day [cit0day.in] breaches.csv
LKnet reserve chat · breach
••• emails
+ 17 more leak sources 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.