This record tracks a ransomware attack claimed by the
qilin group against
Mastelli S.r.l.. It collects the publicly disclosed attack details — sector, location and
timeline — as published on the operator's leak site and indexed by Dark Eye.
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.
13days open
t1 · Published
t2 · Pending
Business Category
Manufacturing / Engineering
Indexed by Dark Eye
October 18, 2026
Disclosed / Notified
Not disclosed yet
Attack Summary
www.mastelli.com operates within the IT sector, specifically within Manufacturing and Engineering, providing relevant technical and operational services to industrial workflows. The entity is cataloged in this threat-intelligence index under the listing type ransomware victim, with the associated threat actor or source identified as qilin. This designation reflects the entity's inclusion in intelligence records related to cybersecurity incidents targeting industrial sectors. No specific incident details such as data stolen, ransom demands, or breach confirmation are provided here, adhering to factual neutrality. The listing serves to document the relationship between this organization and the qilin threat actor within the ransomware victim classification.
Leak Screenshots
1 CAPTURED
Captured directly from the operator's leak site by our collector, last checked 2026-10-24. Verdict evidence: [M1] Published
Capture history —
3 day(s) tracked. Content is locked.
Showing the latest capture only
Unlock the 3 captures already taken.
Dark Web Exposure
Findings for mastelli.com
— indexed by HaveIBeenRansom.
4
found in Infostealer logs
17
found in Traditional breaches
0
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
Instagram_Doxagram_2022_17kk.7z
Misha-z88 DB · breach
••• emails
Instagram.rar
Formaceft db · breach
••• emails
LKnet reserve chat · 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.
Dark Eye only records what the operators themselves publish in the
open. We take screenshots of their public pages and keep the proof
material they post there, so that a listing can be verified and its status
tracked over time. We do not purchase data, we do not solicit or encourage
its publication, we do not access any private system, and we do not alter
anything we record. Nothing is offered for download here, and detailed
content is not published on this page or anywhere else on the public site:
access to it is restricted to vetted customers under contract, for
incident response, due diligence and cyber-resilience work.
Dark Eye is not affiliated with, and does not act on behalf of, the
operators who publish this material. If you represent an organisation or
individual named here and want a record reviewed or removed, contact us
and we will act on it.
