South Korea Expands Espionage Law to Shield Semiconductor and AI Secrets

South Korea implemented an expanded espionage law on September 13, 2026, to protect its critical technology sectors from foreign intelligence operations. The move signals a strategic shift in how the nation defines national security in an era of global AI and chip competition.

The revised Criminal Act broadens the scope of espionage offenses to include spying for any foreign country or equivalent organization. Previously, espionage charges were primarily limited to acts benefiting an "enemy state," a definition that in practice applied almost exclusively to North Korea. Under the new legal framework, individuals convicted of obtaining, disclosing, or transferring national secrets to a foreign power face a minimum prison sentence of three years. The law was passed by the National Assembly on February 26 and took effect following a six-month grace period.

The Drive for Tech Protection

South Korea is a global powerhouse in memory chips, led by industry giants Samsung Electronics and SK hynix. While its counterespionage efforts were historically centered on the threat from the North, the rise of advanced computing and artificial intelligence has transformed semiconductor intellectual property into a vital national security asset. This shift comes amid a surge in industrial theft; South Korean police reported a record 33 cases of overseas technology leakage last year, with more than half of those cases involving China. In a related crackdown, ten former Samsung employees were indicted in December for transferring 10-nanometer-class DRAM technology to CXMT.

National Security Implications

By closing the legal gap that previously hindered the prosecution of non-North Korean espionage, Seoul is treating the theft of high-tech industrial secrets as a matter of state security rather than a corporate dispute. This "legal shield" is designed to protect the semiconductor industry, which remains the backbone of South Korea's export-driven economy. The expansion is particularly critical as the country navigates the intensifying tech rivalry between the United States and China, where chip dominance is viewed as a geopolitical lever.

International Response

The move has drawn attention from Beijing, as China remains a primary destination for leaked Korean technology. Mao Ning, a spokesperson for the Chinese Foreign Ministry, stated that Beijing requires its companies to conduct international cooperation in accordance with laws and international rules. Observers will now watch how the South Korean judiciary applies these broader definitions to pending and future cases of industrial espionage to determine if the harsher penalties effectively deter foreign intelligence efforts.