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 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.
0days open
t1 · Published
t2 · Pending
Business Category
Manufacturing / Engineering
Indexed by Breach House
October 18, 2026
Leak Status
pending
checked 2026-10-18
Disclosed / Notified
Not disclosed yet
Attack Summary
www.mastelli.com operates within the Manufacturing and Engineering sector and is associated with the IT domain context. The entity is cataloged as a ransomware victim within the threat-intelligence index, with the associated threat actor identified as qilin. This listing type indicates the entity was targeted by ransomware activity attributed to qilin, reflecting a cybersecurity incident within its operational environment. The description relies on verified index classification and sector context without inventing specific breach details, data loss metrics, ransom terms, or confirmed attack mechanics. It provides neutral catalog information for threat-intelligence researchers and security professionals monitoring manufacturing and engineering organizations against ransomware threats.
Leak Screenshots
1 CAPTURED
Captured directly from the operator's leak site by our collector, last checked 2026-10-18. Verdict evidence: [M1] no download links, torrent, mirror, part files, published files, or 'published' label visible; only company logo, name, and 'photos' icon.
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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
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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
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