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Medium

Asahi Group Holdings Suffers Cyberattack, Disrupts Operations in Japan

Japanese brewing giant Asahi Group Holdings disclosed a cyberattack that severely disrupted its operations in Japan, including ordering, shipping, and call center services.

Key points

  • Cyberattack disrupted ordering, shipping, and call center operations in Japan.
  • Initial reports indicated no data leakage, but later confirmed data exfiltration.
  • Qilin ransomware group claimed responsibility.

Connected intelligence

Signal brief

Follow the organization, likely method and potential impact to explore connected Shadow Tier intelligence.

02

Likely method

Ransomware

Threat source not confirmed

03

Potential impact

Potential operational disruption

Confidentiality, Availability

Published
Sep 29, 2025
Updated
Jun 25, 2026
Confidence
Medium
Evidence
2 sources

Structured assessment

Signal analysis

It helps compare this signal with other published signals without treating the labels as final determinations.

Threat source

Threat source not confirmed

Watch ransomware, endpoint compromise and business interruption exposure.

Business impact

Potential operational disruption
Impact area
Confidentiality, Availability
Likely asset
User or customer data

Mentioned entities

Asahigroup HoldingsData DisclosureAsahi Group Holdings Suffers CyberattackDisrupts OperationsJapan JapaneseAsahi Group HoldingsJapanThe QilinCyberattackJapan. Initial

Quick context

Questions about this signal

What happened in this signal?

Japanese brewing giant Asahi Group Holdings disclosed a cyberattack that severely disrupted its operations in Japan, including ordering, shipping, and call center services. The company initially stated no confirmed leakage of personal information or customer data, but later confirmed it was a ransomware attack and that data had been exfiltrated. The Qilin ransomware group claimed responsibility.

When was this signal reported?

Shadow Tier lists Sep 29, 2025 as the signal date.

Which organization is connected to this signal?

Asahigroup Holdings is the organization connected to this public signal.

Explore Asahigroup Holdings
Which attack pattern is relevant?

This signal is connected to current ransomware incidents based on its reported incident context.

Explore current ransomware incidents