The South Korean defence industry is facing a hacking risk after malicious codes were found in its major computer systems.


Data from the National Security Research Institute showed that the guided missile manufacturer LIGNex1 Hyundai Heavy Industries uncovered malicious codes planted by hackers.


The National Security Research Institute, which is affiliated with the Electronics and Telecommunications Research Institute, believes hackers have planted vicious codes through which they stole information.


A spokesperson said: “The research institute suspects the culprits are Chinese or North Korean hackers but doesn't know specifically what information they stole. In the worst case, the blueprints of missiles and Aegis ship could have been stolen.


“It's shocking that our major defense industries are open to attacks from hackers and that our missiles are vulnerable to theft by cyber terrorists. A general review of our cyber security system is needed.”