Personal data may have been stolen in the ransomware attack that forced Asahi to halt beer production, the company has said.
Japan's biggest brewer was forced to halt production at the majority of its 30 factories in the country, after a cyber-attack late last month disrupted everything from beer shipments to its accounting system.
All of Asahi's facilities have now partially reopened and restarted production but computer systems remain down, meaning orders are being processed using pen, paper and fax machines.
In a statement on Tuesday, Asahi said it was investigating whether personal information was stolen in the attack.
The company said its Emergency Response Headquarters were working with cybersecurity experts to "restore the system as quickly as possible", and will contact those affected by the hack.
