This record tracks a ransomware attack claimed by the
apt73 group against
gannons.co.uk. 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.
825days
t1 · Published
t2 · Disclosed
Business Category
Finance / Legal / Insurance
Published
November 01, 2023
Disclosed / Notified
Feb 04, 2026
Attack Summary
Gannons Commercial Law Limited
Catherine Gannon, then a tax solicitor at a large US law firm, lo...
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 gannons.co.uk
— indexed by HaveIBeenRansom.
0
found in Infostealer logs
305+
found in Traditional breaches
0+
found in Ransomware leaks
SevenRooms_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
linkedIN_2.7z.001
Database World ROC · breach
••• emails
Apollo.io DB 816millions.rar
Database World ROC · breach
••• emails
pureincubation-com.7z.001
Database World ROC · breach
••• emails
VerificationsIO_BF.7z.011
Kedr | Forum · breach
••• emails
Twitter Full DB.part01.rar
Database World ROC · breach
••• emails
Cit0day [cit0day.in] breaches.csv
LKnet reserve chat · breach
••• emails
LinkedIn.com.txt
Database World ROC · breach
••• emails
+ 14 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.