South Korea is tightening its industrial espionage law this weekend in a direct effort to protect the semiconductor technology of Samsung Electronics and SK Hynix from leaking to Chinese competitors, Bloomberg reported Thursday. The revision expands the legal definition of espionage, which until now only covered individuals acting on behalf of North Korean intelligence, leaving prosecutors with blunt and often inadequate charges when trade secrets moved to private companies abroad.
The change matters because Korea’s two memory chipmakers sit at the center of the global AI hardware buildout. Samsung and SK Hynix produce most of the world’s high-bandwidth memory, the stacked DRAM that Nvidia’s accelerators depend on, and their process technology is among the most closely guarded industrial know-how anywhere. Courts have already imposed severe sentences on engineers caught moving that know-how, but the underlying law was written for a different threat.
The cases that forced the change
The pressure for reform came from a series of prosecutions that exposed the law’s limits. A former Samsung engineer identified in court records only by his surname Kim was accused of stealing proprietary 18-nanometer DRAM process data and equipment designs and passing them to ChangXin Memory Technologies, China’s leading memory maker. Prosecutors sought a 20-year term. The case bounced through appeals, with a February Supreme Court ruling that significantly expanded criminal liability for industrial espionage, and a High Court sentencing this spring that the court paired with a 200 million won fine, stating that the theft of core national technologies is a grave crime.
A separate Seoul trial involves 10 former Samsung employees accused of helping CXMT. Prosecutors say the transferred technology cost Samsung about 5 trillion won, roughly $3.7 billion, in lost sales in 2024 alone. Police data cited by Korean media indicate that Chinese entities were linked to half of all detected technology leak cases involving Korean firms last year, though the revised law does not name China explicitly. Officials prefer the framing of protecting critical national technology, which avoids a direct diplomatic confrontation while still targeting the main source of concern.
The competition behind the law
The timing is not accidental. CXMT has more than doubled its production capacity and is pushing into the memory segment that Korean firms dominate. Chinese flash maker YMTC has taken steps toward a major listing, and a Bank of Korea report this month projected that new Samsung and SK Hynix plants coming online by 2028 will add about 600,000 wafers per month of capacity, the same increase CXMT is expected to reach over a similar period. The central bank’s conclusion was that Korea’s lead will hold, but only if process technology stays put.
Washington is watching closely. The United States has restricted exports of advanced chipmaking tools to China for years, and technology transferred through people rather than equipment undermines those controls. A Korean law that makes prosecuting tech leaks easier serves both governments, and past bilateral coordination on semiconductor export policy suggests Seoul moved with an eye on Washington’s expectations.
What the revision actually does
The core change is definitional. Espionage now covers the theft and transfer of nationally critical technologies regardless of who directs the offender, closing the North Korea-only gap. Companies in target sectors gain clearer standing to press complaints, and the range of intermediate conduct that counts as preparation for a leak is widened, which prosecutors say is essential because technology usually leaves the country in fragments: equipment drawings here, process parameters there, a hire with institutional memory.
Korean chipmakers already run extensive internal defenses. Samsung and SK Hynix monitor exits of senior engineers, restrict photography in fabrication plants, and split sensitive process knowledge across teams so no single employee holds a complete picture of a process node. What they could not do was rely on criminal law for the final backstop when someone walked out the door with blueprints. The revision gives prosecutors that tool, and the Supreme Court’s February ruling signals that judges will use it.
Penalties were already trending upward even before the statute changed. The sentence in the Kim case was raised on appeal after the Supreme Court intervened, and prosecutors in the pending trial have made clear they view technology transfer to CXMT as comparable in gravity to conventional security offenses. The legislative change aligns the statute with what the judiciary has been doing in practice.
Limits and pushback
Critics point out that laws do not stop determined states, only raise their costs. Chinese firms have recruited Korean, Taiwanese and Japanese semiconductor veterans for years with pay packages no domestic employer can match, and that recruitment pipeline continues regardless of statute. Enforcement also depends on catching the transfer in the first place, which is difficult when know-how moves as memory rather than documents.
Business groups have also flagged a due process concern: the broader definition of preparatory conduct could sweep in legitimate job changes by engineers with ordinary industry knowledge. Lawmakers included safeguards on what qualifies as nationally critical technology, but the boundary will be tested in court, and the first acquittals or convictions under the new definition will shape how aggressively prosecutors use it.
For now, the signal is what counts. Seoul has decided that its chip industry is a strategic asset worth defending with state-level legal force, and anyone shopping for Korean memory technology knows the price of getting caught just went up. With memory demand surging on AI spending and capacity races under way in three countries, the government has concluded that the cheapest insurance for a 600,000-wafer lead is a sharper criminal statute.