Asahi’s Cyber Woes See Rivals Tap Further Into Japan Beer Market

Asahi Group Holdings Ltd.’s local rivals are capitalizing on its prolonged system outage to gain market share in Japan, as the brewer struggles to recover from a cyberattack that paralyzed its production and distribution.

Asahi’s Japan beer sales were down a little less than 10% from a year earlier in October, while competitor Kirin Holdings Co.’s jumped as much as 19%, according to monthly data released by the companies Thursday. Sapporo Holdings Ltd.’s sales volume was up 13%, and Suntory Holdings Ltd. remained flat.