The vast majority of Asahi Group’s 30 factories in Japan have not operated since Monday after the attack disabled its ordering and delivery system, the company said.

Retailers are expecting empty shelves as the outage stretches into its fourth day with no clear timeline for factories recommencing operations. Super Dry could also run out at izakaya pubs, which rely on draught and bottles.

Japan days away from running out of Asahi Super Dry after cyber attack