Asahi Group Holdings said Tuesday that personal information may have been breached in a recent cyberattack on the Japanese food and beverage group.

It is unclear whether the affected information includes data about customers and business partners.

Due to the cyberattack, the company has decided to postpone the release of its earnings results for the period between January and September, which was set for Nov. 12.

In the cyberattack, Asahi Group was hit by ransomware, and a hacker group calling itself Qilin claimed responsibility online on Oct. 7, saying that it stole more than 9,300 data files from the company, including financial data and personal information on employees.

On Oct. 8, the company confirmed the existence of possibly stolen data on the internet.

As the company's systems have not yet been restored, it is manually processing orders for its products.