Pulmuone Co., Ltd. Listed by blackmatter Ransomware Group: Ransomware Claim — What’s Alleged & What To Do
The Pulmuone Co., Ltd. Listed by blackmatter Ransomware Group (reported September 18, 2021) is an unverified claim; the data involved is undisclosed belonging to roughly unknown people. If you have an account with them, your information may now be circulating on the open web and with data brokers. Here’s exactly what happened, how to check if you were affected, and what to do next.
What happened
The only confirmed information is the appearance of Pulmuone Co., Ltd. on the blackmatter leak site. The group claims to have stolen internal data from the organisation. No public statement from the company has disclosed the date of the intrusion, the method of access, the volume of data taken, or whether any systems were encrypted. The number of people whose information may be involved remains undisclosed.
Inside blackmatter
Blackmatter is a ransomware operation that first appeared in mid-2021. The group follows a double-extortion model in which data are copied before encryption, after which the operators list victim names on a leak site to pressure payment. Public reporting on the group has documented activity against companies in multiple countries and sectors, with the operators typically posting file samples or directory listings as evidence of access. In this case the listing itself constitutes the group’s claim; no independent confirmation of the data theft has been released.
Who is Pulmuone Co., Ltd.?
Pulmuone Co., Ltd. is a South Korean food manufacturer whose products include tofu, noodles, and other bean-based items distributed through retail and food-service channels. Companies of this type maintain records on suppliers, production processes, distribution networks, and employee or customer accounts. A breach at such a firm can expose operational documents whose sensitivity lies in commercial rather than personal information.
What was likely exposed
The facts released so far state only that internal files were exfiltrated. No inventory of file types, no count of records, and no confirmation of personal data have been published. Organisations in food manufacturing commonly store supplier contracts, formulation records, logistics data, and internal correspondence; whether any of these categories were taken in this incident is unconfirmed.
Why it matters
Exposure of internal operational files can create competitive or supply-chain risks for the affected company and its partners. Where personal information is present, individuals may face follow-on fraud or phishing attempts. Because the exact contents and scope remain unknown, the practical consequences for any specific person or business partner cannot yet be assessed.
If your data was in this claimed breach
Monitor bank and credit accounts for unusual activity and consider placing fraud alerts with major credit bureaus. Use a unique password for each service and enable multi-factor authentication where available. Readers may run a free exposure scan of their email address against known breach data sets to determine whether their information appears in publicly reported incidents.
AICompiled with AI assistance from public sources and published under our editorial standards.
How this breach connects
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Read GalaxyWarden’s full analysis of the Pulmuone Co., Ltd. Listed by blackmatter Ransomware Group →
Publicly posted by blackmatter — 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.