Japan’s largest brewery, Asahi Group Holdings, is racing against time as it struggles to recover from a cyberattack that has severely disrupted its operations. The Asahi cyberattack, which was first reported last week, led to a complete halt in production at most of the company’s 30 factories across the country. As a result, Japan is now days away from running out of its most popular beer, Asahi Super Dry, unless the company can quickly restore its systems and resume production.
The cyberattack on Asahi has triggered a widespread crisis, with many retailers, wholesalers, and pubs bracing for empty shelves and a shortage of the mass-market lager. Asahi Super Dry, a cornerstone of Japan’s drinking culture, sells over 73 million cases annually, making it a major fixture in bars, restaurants, and supermarkets across the nation.
However, due to the system outage caused by the cyberattack on Asahi Super Dry, its supply chain has been severely compromised, and the company has warned that it could exhaust its remaining stock of beer in just two or three days.
Decoding Cyberattack on Asahi Group
The cyberattack on Asahi specifically targeted Asahi’s ordering and delivery systems, rendering them inoperable. This forced the brewery to stop production and delivery operations at its domestic plants. Asahi has not yet provided a timeline for when its factories will resume production.
Meanwhile, the lack of fresh stock is putting pressure on retailers, especially those that rely heavily on the brand’s flagship product. Supermarkets, izakayas (traditional Japanese pubs), and convenience stores have already started to feel the impact, with some outlets suspending the sale of Asahi products.
A report from Financial Times confirmed that the company was facing the imminent risk of running out of its popular beer, while other products, such as soda and protein bars, have also been delayed indefinitely due to the attack. The company has not disclosed whether it plans to release new products in the near future, adding to the uncertainty.
Supply Chain and Retail Impact
The cyberattack on Asahi Super Dry has disrupted not just beer production but also the broader supply chain for the company’s various beverage and food products. Retailers such as Lawson Inc., Familymart Co., and 7-Eleven have warned customers that Asahi products, including beverages and private label items like Mitsuya Cider and Seven Premium Clear Cooler, may become scarce in the coming days. Some convenience stores, such as 7-Eleven, have already posted notices informing customers that shipments of Asahi Super Dry have been suspended.
E-commerce platforms have not been spared. For example, Aeon supermarket’s online store has temporarily halted the sale of Asahi beer and soft drinks. The disruption is so widespread that even restaurants and chains like Monogatari Corp., which operates the Marugen Ramen chain, are contemplating switching beer suppliers. If the crisis persists, establishments like Kisoji Co., a popular shabu-shabu restaurant chain, may also be forced to source beer from other brands like Suntory or Kirin.
No Customer Data Compromised
Asahi has publicly stated that no customer data was compromised during the cyberattack, and its overseas operations have not been affected. However, the company’s internal communications and customer service operations have been severely disrupted. With the company’s email systems offline, employees are now forced to take orders over the phone and process them manually, adding to the operational chaos.
The brewery has reported the incident to the Tokyo Metropolitan Police and is cooperating with authorities to investigate the cyberattack, which is suspected to be a ransomware attack. Asahi has not yet identified the perpetrators, but this attack comes amid a rise in ransomware incidents in Japan. According to the National Police Agency, there were 116 reported ransomware cases in the first half of 2025, matching the highest number ever recorded for six months.
Beer Shortage on the Horizon
In Japan, beer is a significant part of the cultural fabric, and Asahi Super Dry is a dominant player in the market. The potential shortage of this beloved beer is likely to have a profound impact on both consumers and businesses. Pubs and restaurants may need to consider alternative beer suppliers, while wholesalers and retailers will need to manage dwindling stocks in the face of growing demand.
The cyberattack on Asahi Super Dry has cast a shadow over Japan’s beer market, with the country now on the brink of running out of its most popular beer. Asahi’s ability to recover quickly from this cyberattack will be crucial in determining how long the shortage lasts and its impact on the broader food and beverage industry in Japan.
The Cyber Express has reached out to the Asahi group to learn more about the incident. This is an ongoing story, and The Cyber Express will be closely monitoring the situation. We’ll update this post once we have more information on the attack or any additional information from the organization.
