South Korea is escalating its efforts to combat industrial espionage by implementing a revised spy law this weekend. The legislation aims to safeguard advanced memory technology developed by global chip giants like Samsung Electronics Co. and SK Hynix Inc. from foreign competitors, particularly those in China. This move reflects the increasing strategic importance of semiconductors to South Korea's economy and national security. The new law expands the definition of espionage beyond just North Korea, allowing courts to sentence individuals who leak sensitive technology to any "foreign country or an organization equivalent thereto" to up to 30 years in prison. Previously, courts were constrained by a narrow definition of espionage that only applied to spying for North Korea.
The revised law, set to take effect on September 13, explicitly targets technology theft by foreign entities, though China is not specifically named. Concerns about China's rapid advancements in chip technology are a significant driver, with South Korean police data indicating that half of all detected technology leaks to foreign entities in 2025 involved China. Industry Minister Kim Jung-kwan highlighted the "intense urgency" regarding China's speed. The country's strong semiconductor exports are a major contributor to its economic growth, and the government has unveiled an $880 billion plan to develop a massive semiconductor hub to maintain its leadership. Samsung and SK Hynix currently control about 38% and 25% of the DRAM market, respectively, but face pressure from Chinese rivals like CXMT and Yangtze Memory Technologies.
The stricter measures come amidst ongoing high-profile cases, such as the indictment of ten former Samsung Electronics employees for allegedly leaking technology to CXMT, resulting in an estimated $3.66 billion in lost sales for Samsung in 2024. These employees are accused of transferring Samsung's production process for 18-nanometer DRAM. CXMT, which reached 10% global market share in DRAM in Q2 2026, became China's largest onshore-listed company after its IPO. The US has also imposed export controls on China and urged allies like South Korea to prevent technology leaks, with the Pentagon blacklisting CXMT in February. While large chipmakers have internal security teams, smaller suppliers, which accounted for over 85% of tech leaks between 2020 and 2024, are more vulnerable. Despite the new laws, proving nation-state involvement, especially with countries like China that legally require citizens to aid state information gathering, will remain a challenge for prosecutors.
