Cybercrime group 'Qilin' asserts it has breached Japan's Asahi Group.
Written by Emily J. Thompson, Senior Investment Analyst
Updated: Oct 07 2025
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Source: Reuters
Ransomware Attack on Asahi Group: The Qilin ransomware group claimed responsibility for a cyberattack on Japan's Asahi Group Holdings, disrupting production at its beer-making subsidiary, Asahi Breweries, which resumed operations on October 2 after the hack was reported on September 29.
Data Theft and Group Profile: Qilin claims to have stolen over 9,300 files (approximately 27 GB of data) from Asahi and has a history of aggressive attacks, with nearly 870 incidents since its emergence in 2022, including a notable hack linked to a patient's death in a London hospital.
About the author

Emily J. Thompson
Emily J. Thompson, a Chartered Financial Analyst (CFA) with 12 years in investment research, graduated with honors from the Wharton School. Specializing in industrial and technology stocks, she provides in-depth analysis for Intellectia’s earnings and market brief reports.








