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Sisnet, Costa Rica

nightspire

This record tracks a ransomware attack claimed by the nightspire group against Sisnet, Costa Rica. 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.

-80days
t1 · Published t2 · Disclosed
Apr 25, 2025Feb 04, 2025
Country
Costa Rica
Business Category
Other
Employees
51-100
Discovered
2025-04-26
Published
April 25, 2025
Disclosed / Notified
Feb 04, 2025
Victim ID
4L0jtjSfgnYX

Attack Summary

Sisnet, Costa Rica

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.

file_tree.png
finance_2024.xlsx
passport_scan.jpg
contract_signed.pdf
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Dark Web Exposure

Findings for sisnet.co.cr — indexed by HaveIBeenRansom.
0
found in Infostealer logs
6
found in Traditional breaches
0
found in Ransomware leaks
CrimeAgencyVBulletin_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
Dropbox_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
Dailymotion_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
MGM_Grand_Hotels RUTOR.7z
TheUnderground - Reborn · breach
••• emails
DaniWeb_BF.7z
B F R e p o V 3 F i l e s · breach
••• emails
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.