CybersecurityNichirei says personal information could be includedData stolen during a cyberattack on Nichirei was posted online by a hacker group calling itself RansomHouse. (Photo obtained by Nikkei)HIROYASU ODAAugust 11, 2026 01:26 JSTTOKYO -- A hacker group calling itself RansomHouse published data it claims to have stolen from Japanese cold-storage and logistics company Nichirei, thought to include general affairs, human resources, accounting and business partner information, Nikkei learned on Monday.