South Korea’s expanded espionage law takes effect to cover all foreign states

A broader criminal offence

South Korea’s revised espionage law took effect on September 13, expanding the offence beyond conduct benefiting North Korea to cover spying for any foreign state or equivalent organisation. The amendment creates a new offence carrying a minimum prison term of three years. Existing provisions aimed at activity benefiting an enemy state remain in force. The change follows years of criticism that the old language was poorly suited to cases involving governments or companies outside North Korea.

From national security to economic security

The measure reflects Seoul’s growing concern that advanced industrial knowledge has become a strategic asset. South Korea is central to global production of memory chips, displays, batteries and other technologies, making information held by companies such as Samsung Electronics and SK Hynix valuable to competitors. Under the earlier framework, prosecutors often had to rely on trade-secret or industrial-technology statutes rather than the criminal code’s espionage provisions when alleged beneficiaries were not North Korean.

How the law arrived

The National Assembly passed the criminal-code revision on February 26. It was promulgated on March 12 and entered into force after a six-month transition period. Reuters reported that the National Intelligence Service welcomed the change as a stronger means of deterring leaks involving semiconductors, displays, artificial intelligence and other strategic fields. The law itself is country-neutral, even though public discussion has repeatedly focused on technology transfers to China.

The international backdrop

Official US policy documents provide broader context for why semiconductor security has become a diplomatic as well as domestic issue. A State Department strategy for cooperation with South Korea identifies secure and resilient semiconductor supply chains, investment screening, economic security and law-enforcement cooperation as bilateral priorities. That document does not verify any individual espionage allegation, but it shows that protection of advanced technology was already embedded in allied policy planning.

Questions for enforcement

The next test will be how prosecutors distinguish criminal espionage from ordinary commercial competition, employee mobility and lawful cross-border research. Enforcement will also show what courts consider a foreign-state-linked organisation and what evidence is required to prove that a defendant intended to benefit it. Beijing has said countries should protect normal investment and business activity and provide a fair environment. Future prosecutions will determine whether the revision is used narrowly against state-directed theft or more broadly across technology disputes.