By 防衛装備庁(ATLA) - 防衛装備庁ホームページhttp://www.mod.go.jp/atla/research/kaihatsusoubi/C-2.html, CC BY 4.0, https://commons.wikimedia.org/w/index.php?curid=5225834

Japanese defense contractor hacked, raising concern that data was stolen

The Kawasaki company that supplies submarines and planes to the Japanese military was breached in June of this year. Now the company reports that it is possible that defense-related information was leaked