company allegedly hacked as reported by AlphV ransomware with details: Kumagai Gumi Co., Ltd. is a Japanese construction company founded in Fukui, Fukui Prefecture, Japan. The fellowship still has registered headquartersin Fukui, but the actual chief office is located in Shinjuku, tokyo Full data has been uploaded (more than 5tb)and try datas are attached contact us and pay the fee to keep data from being published