Japanese brewing giant Asahi Group Holdings, the manufacturer of Japan’s most popular beer Super Dry, suffered a devastating ransomware attack in late September 2025 that forced the company to revert to manual operations using pen, paper, and fax machines. The cyberattack was first disclosed on September 29, when the company announced a system failure that disrupted ordering, shipping, and customer service operations across its 30 domestic breweries in Japan.
The ransomware incident, later claimed by the Qilin hacking group, forced Asahi to temporarily shut down nearly all its Japanese production facilities. The attack crippled the company’s online systems, leaving vendors and business owners without access to information as call centers and customer service desks were closed. Asahi was forced to process orders manually using traditional paper-based methods and fax machines to prevent potential beverage shortages across the country.
Initial investigations revealed traces suggesting potential unauthorized data transfer, and the company later confirmed on October 14 that personal information may have been compromised. The Qilin ransomware gang claimed responsibility for the breach, alleging they stole approximately 27 gigabytes of data containing financial documents, bu
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