Korea Aerospace Industries reportedly suffered two hacking attempts in 2021 that exposed KF-21 Boramae fighter design drawings and related technical information. Sources cited in the article said hacking attempts may have affected most of KAI’s defense programs, raising concern that data on unmanned aircraft, FA-50 light attack aircraft, and Surion helicopters may also have been targeted. The stolen files were reportedly protected by a DRM system, and police, military, and intelligence authorities were investigating the incident at KAI’s Sacheon headquarters. A South Korean lawmaker attributed the activity as possibly linked to North Korea’s Reconnaissance General Bureau and Kimsuky, but the article states the attacker had not been finally confirmed.