This record tracks a ransomware attack claimed by the
insomnia group against
Dunn and Dunn. 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.
-38days
t1 · Published
t2 · Disclosed
Business Category
Communication / Marketing
Published
January 08, 2026
Disclosed / Notified
Dec 01, 2025
Attack Summary
Dunn and Dunn is a Boston - based law firm established in 1928. They specialize in providing legal counsel and representation to healthcare professionals. Core practice areas include: Medical malpractice defense, Long-term care defense, General liability defense
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 dunnanddunn.com
— indexed by HaveIBeenRansom.
0
found in Infostealer logs
36
found in Traditional breaches
5
found in Ransomware leaks
VerificationsIO_BF.7z.011
Kedr | Forum · breach
••• emails
OnlinerSpambot_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
Arandell Corp
medusa · ransomware
••• emails
Neiman Marcus_.7z.001
Database World ROC · breach
••• emails
Colonial Surety Company
medusa · ransomware
••• emails
Guccifer 2.0
ddosecret · breach
••• emails
pureincubation-com.7z.001
Database World ROC · breach
••• emails
MGM_Grand_Hotels RUTOR.7z
TheUnderground - Reborn · breach
••• emails
+ 3 more leak sources locked
Leak volumes are locked
Sign in to reveal how many records each source exposed and the remaining 6 sources.
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.