Qilin claims Keio Corporation breach, posts 27 sample images

Keio Corporation confirmed a ransomware attack on its group servers on September 26, disrupting hotel bookings, store payments, and other systems. The incident now has a second, unverified layer: Qilin listed Keio on its leak site and claimed it stole internal documents, employee information, HR records, financial data, communications, and contracts.

Qilin posted 27 sample images as proof, but the authenticity of those files and the claimed data theft have not been confirmed. The amount of data exposed remains unknown.