Asahi ransomware attack disrupts Japanese production, raises data leak concerns
Asahi Group suffered a cyberattack in September 2025 that disrupted production and shipments in Japan, and later confirmed it was a ransomware attack. The ransomware group Qilin claimed responsibility, while the company continued operations using manual processes. By July 2026, the number of personal information records potentially exposed had risen to 2.28 million.
Key facts
- Affected organization
- Asahi Group Holdings
- Incident type
- Ransomware
- Occurred / detected
- 2025-09
- Scale of damage
- Potential exposure of 2.28 million personal information records and disruptions to production and shipments in Japan
- Cause / method
- Ransomware attack
- Location
- Japan
Timeline
- Reports emerged that Asahi Group was struggling to resume production following a cyberattack.
- Asahi Group confirmed a ransomware attack.
- The ransomware group Qilin claimed responsibility for the attack on Asahi Group.
- It emerged that approximately 1.91 million personal information records may have been leaked.
- The number of personal information records potentially exposed rose to 2.28 million.
Also affected by this incident
Asahi cyberattack leaves Seven-Eleven Japan short of beer
↳ Knock-on damage from the Asahi Group Holdings incident · View original incidentImpact: Shortage of Super Dry beer
Seven-Eleven Japan ran short of Super Dry beer in the wake of a cyberattack on Asahi. The beer shortage came to light on October 2, 2025.
Read on Bloomberg.com ↗
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The summary and key facts are written by AI from related reports and may contain errors. Check the original articles and the organization’s official statements for accurate details.