North Korean ”3 hacker groups” launch ”all-out attack” on South Korean defense industry companies... More than 10 locations affected

It has been confirmed that three major North Korean hacker groups have been conducting comprehensive hacking attacks for at least one year and six months with the common goal of "stealing technology from the South Korean defense industry."
More than 10 of South Korea's 83 defense industry facilities were hacked, but the exact extent of the damage has not been estimated. Moreover, many of these companies were only able to conceal the damage until police investigations began.
Due to the lack of awareness of this fact, some have pointed out that "security management in the defense industry as a whole may have been neglected."
The National Police Agency's National Investigation Agency's Security Investigation Bureau said on the 23rd, "We are investigating in cooperation with the National Cyber Crisis Management Team.
"As a result, it was confirmed for the first time that a North Korean hacker group, Lazarus Andariel Kimsky, conducted a joint attack to steal domestic defense industry technology," the statement said.
Police said, "Through this investigation, we have confirmed that hacking attacks occurred from at least one year and six months ago until relatively recently, but we are unable to determine the exact period during which they occurred or the overall scale of damage."
The police also noted that "North Korea launched an all-out attack using multiple hacking groups with the common goal of stealing South Korea's defense industry technology."
He emphasized that he had discovered the secret and speculated that "behind it all were specific instructions from North Korean leader Kim Jung Eun."