On September 14, 2024, Japanese manufacturer 藤森工業株式会社 (Fuji Mori Kogyo Co., Ltd.) was listed on the leak site operated by the argonauts ransomware group. The listing states that internal files totaling 140GB were exfiltrated after the company refused to pay a ransom demand. The disclosure indicates that data was taken during a ransomware attack and is now being offered for sale because negotiations failed.
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Details from the Leak-Site Listing
The primary disclosure on the argonauts leak site states that 140GB of internal files were stolen. It explicitly notes the company’s refusal to pay and states that the actors “continue to sell” the material. The listing does not specify the exact types of records contained in the archive beyond describing them as internal files, nor does it disclose the number of individuals whose information may be included. Public mirrors of the onion site, such as those indexed by ransomware.live, preserve the original claim without additional detail from the threat actors.
The incident follows the group’s standard pattern of exfiltrating data before or during encryption attempts, then using the threat of public release or sale as leverage. Because the victim count remains unknown, affected individuals cannot yet determine whether their personal information is among the stolen material.
Why This Matters for You and Your Family
When a manufacturing company like 藤森工業株式会社 suffers a breach, the exposed internal files frequently contain employee records, vendor contracts, customer details, and correspondence that can include names, addresses, dates of birth, and financial information. Even if you have never directly done business with the company, your data may still be present through supply-chain relationships, employment history, or shared business partners.