This record tracks a ransomware attack claimed by the
thegentlemen group against
Seeley Office Systems. 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.
-35days
t1 · Published
t2 · Disclosed
Business Category
Services
Disclosed / Notified
Apr 20, 2026
Attack Summary
seeleyoffice.com zoominfo.com/c/seeley-office-systems-inc/347773140 family-owned business since 1981, based in Glens Falls, New York. They deliver comprehensive office solutions: from printers and MFPs to managed print services and supply procurement. Focused on boosting business productivity through personalized service and competitive pricing across the Capital and Adirondack regions
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 seeleyoffice.com
— indexed by HaveIBeenRansom.
0
found in Infostealer logs
101
found in Traditional breaches
47
found in Ransomware leaks
Access Intelligence
play · ransomware
••• emails
VerificationsIO_BF.7z.011
Kedr | Forum · breach
••• emails
pureincubation-com.7z.001
Database World ROC · breach
••• emails
limeleads_breach.7z
TheUnderground - Reborn · breach
••• emails
Apollo.io DB 816millions.rar
Database World ROC · breach
••• emails
Arandell Corp
medusa · ransomware
••• emails
@BreachedData1 LinkedIn 2021-23 Cleaned.7z.001
Database World ROC · breach
••• emails
LinkedIn.com.txt
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 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.