Mercury Wire Products Listed by sinobi Ransomware Group: Ransomware Claim — What’s Alleged & What To Do
Mercury Wire Products has been listed by the sinobi ransomware group, with internal files reported exfiltrated and the incident disclosed on 16 December 2025. Individuals connected to the company should verify whether their information was exposed and take appropriate protective steps.
On December 16, 2025, the ransomware group sinobi listed Mercury Wire Products on its leak site, asserting that internal files had been taken during a ransomware operation against the company. Public records do not yet confirm the number of individuals affected, the volume of data involved, or whether the files have been published.
The listing places the incident within a broader pattern of ransomware activity that continues to target manufacturers holding technical and contractual records. Because the company supplies components to industrial, medical, military, and defense customers, any confirmed exposure of internal material would carry implications beyond routine commercial data.
What happened
The only confirmed public detail is the December 16, 2025 listing by sinobi. The group states that files were exfiltrated during a ransomware attack. No independent confirmation of the claim, no figure for records involved, and no timeline for the intrusion itself have been released by the company or investigators.
The group behind it: sinobi
Sinobi is a ransomware operator that has appeared on multiple leak sites since 2023. Public reporting describes the group as using encryption paired with data theft to pressure victims. Its listings have included organizations in manufacturing, logistics, and professional services. As with other such actors, the presence of a victim on the group’s site constitutes an unverified claim until corroborated by the affected organization or law-enforcement findings.
About Mercury Wire Products
Mercury Wire Products, founded in 1967, manufactures custom wire, cable, and engineered assemblies. The company serves clients across industrial, medical, military, and defense sectors, including applications such as underwater cable. Its operations rely on detailed client specifications, material records, and production processes that are typically stored in internal systems.
The information in question
The listing refers only to “internal files.” No inventory of specific data categories has been published. Organizations of this type commonly maintain engineering drawings, supplier contracts, quality-control records, and customer specifications. The precise contents of any exfiltrated material remain unconfirmed.
Why it matters
Manufacturers that support defense and medical customers often hold technical data whose unauthorized release can affect supply-chain integrity or contractual obligations. Individuals whose information appears in such files—whether as employees, contractors, or clients—face the standard risks associated with exposed internal records, including potential misuse of credentials or personal details. The absence of a confirmed record count leaves the scale of any downstream impact unknown.
Were you affected?
Individuals who have done business with Mercury Wire Products or who work in its supply chain can monitor official statements from the company. A practical first step is to review recent account activity and enable multi-factor authentication on any services that may share credentials with the organization. Readers may also run a free exposure scan of their email address against known breach data sets to check for prior appearances of their information.
AICompiled with AI assistance from public sources and published under our editorial standards.
How this breach connects
More recent breaches
Geometrics Listed by sinobi Ransomware GroupTurnamics Listed by sinobi Ransomware GroupEmpire Screen Printing Listed by sinobi Ransomware GroupSouth Shore Tool & Die Listed by sinobi Ransomware GroupLatest breaches
Read GalaxyWarden’s full analysis of the Mercury Wire Products Listed by sinobi Ransomware Group →
Publicly posted by sinobi — unverified claim, pending independent verification
Breach listings — particularly those originating from ransomware or leak sites — are third-party claims that may be unverified, incomplete, or inaccurate. A listing does not by itself confirm that a breach occurred or that any specific data was exposed. Severity is an automated assessment, not a definitive rating. Verification status is shown where available.
Attributions to threat groups and methods reflect public reporting and, in some cases, unverified claims made by the groups themselves; they may be incomplete or later revised. Recent Breaches and GalaxyWarden are independent and are not affiliated with, and do not endorse, any company or group named on this page. This information is aggregated from public sources for awareness only and is not legal, security, or investment advice.