The ransomexx ransomware group listed SOGO Auction on its data leak site on 2026-04-17. Country: JP Sector: Professional Services Domains named: sogocorporation.com Claim as published on the leak site: SOGO Auction - 951MB leaked. SOGO Auction is a prominent Japan-based, specialized auctioneer with over 30 years of experience in trading used construction machinery and heavy equipment. Operating since the 1990s, they provide both on-site and online, high-volume auctions for items like excavators and bulldozers. It is operated by SOGO Corporation.