This record tracks a ransomware attack claimed by the
qilin group against
Onsemi. 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 05, 2026
Leak Status
pending
checked 2026-10-05
Disclosed / Notified
Not disclosed yet
Attack Summary
www.onsemi.com operates as a prominent semiconductor corporation headquartered in the United States, serving the Manufacturing and Engineering sectors through advanced semiconductor products, solutions, and engineering services. The entity provides critical components and technologies supporting industrial, electronic, and embedded systems across global supply chains. Within this threat-intelligence index, www.onsemi.com is cataloged as a ransomware victim linked to the threat actor qilin. This listing reflects the entity's inclusion in the ransomware victim category associated with qilin, presented neutrally and without confirmation of specific breach details. The entry serves catalog and intelligence purposes for tracking cyber incidents affecting key industrial and technology organizations.
Leak Screenshots
1 CAPTURED
Captured directly from the operator's leak site by our collector, last checked 2026-10-05. Verdict evidence: [M1] COMPANY URL | OCT 5, 2026 | 219 | 8 photos
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Dark Web Exposure
Findings for onsemi.com
— indexed by HaveIBeenRansom.
817
found in Infostealer logs
94,261
found in Traditional breaches
0
found in Ransomware leaks
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