South Korea's expanded espionage law takes effect this weekend, up to 30 years

September 11, 2026 at 12:32 PM2 min

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South Korea's revised industrial espionage law takes effect this weekend, broadening the definition beyond North Korea to any foreign state or organization. Violators face prison terms of up to 30 years. The change comes as more than half of last year's technology leak cases were linked to China.

Key Facts

The revised law takes effect this weekend and allows courts to define industrial espionage as activity benefiting any foreign state or organization, not just North Korea.
Violators face prison terms of up to 30 years, elevating industrial espionage from a corporate threat to a national security issue.
More than half of the technology leak cases detected last year were linked to China, according to South Korean police statistics.
In 2024, 10 former Samsung Electronics engineers were charged with illegally transferring technology secrets to China's CXMT, with damages estimated at $3.7 billion.
CXMT controlled 10% of the global DRAM market in Q2 2026, while Samsung held 38% and SK hynix 25%, according to Counterpoint Research.

Legal Expansion

The revised law, effective this weekend, broadens the definition of industrial espionage beyond North Korea to include any foreign state or organization. Courts will now be able to apply the term to activities benefiting any foreign entity, not just those linked to North Korea. Penalties for violations include prison sentences of up to 30 years. The change elevates industrial espionage from a corporate-level threat to a matter of national security.

China Focus

China is not explicitly named in the legislation, but South Korean police statistics show that more than half of last year's technology leak cases were related to China. In 2024, 10 former Samsung Electronics engineers were charged with illegally transferring technology secrets to China's CXMT, with damages estimated at $3.7 billion. CXMT was reportedly interested in obtaining 18-nanometer memory production technology. In Q2 2026, CXMT held 10% of the global DRAM market, while Samsung held 38% and SK hynix 25%, according to Counterpoint Research. The United States added CXMT to a list of companies barred from cooperating with American defense customers in February 2026.

Industry Protection

South Korea's memory chip export revenue forms a substantial part of the country's GDP, making protection of the industry a state priority. National semiconductor development programs involve investments of up to $880 billion. Espionage activity has created demand for private detectives who investigate suspected technology leaks in South Korea. Taiwan criminalized industrial espionage in 2022, where the world's largest contract chipmaker TSMC operates.