The Indictment
On July 20, 2026, Taiwanese prosecutors indicted a former TSMC deputy manager, identified only by the surname Chen, under the National Security Act and the Trade Secrets Act — the first prosecution of its kind for an alleged attempt to transfer "national core critical technology" trade secrets to China (Focus Taiwan). Prosecutors allege that between May 2023 and February 2024, Chen and a Chinese national, Ding Xiaohu, planned to set up a semiconductor-materials analysis company in China under a recruitment scheme called the "Blue Sea Project," and that Chen copied 21 classified and general trade-secret documents with the intent of using them there (Taipei Times). Prosecutors are seeking a seven-year sentence. Notably, TSMC's own internal monitoring flagged the irregularity and the company recovered all 21 documents before any transfer occurred — the leak was contained, not consummated.
A Law Built for This Exact Scenario
This case is the first real test of a statute written specifically for it. Taiwan's Legislative Yuan amended the National Security Act in May 2022, adding Article 3's prohibition on stealing, reproducing, or disclosing trade secrets tied to "national core key technologies" for the benefit of China, Hong Kong, Macau, or hostile foreign forces, with Article 8 penalties running 5 to 12 years' imprisonment and fines of NT$5 million to NT$100 million (roughly $160,000 to $3.1 million) (Laws & Regulations Database of the ROC). The amendment took effect that November, built explicitly to address the pattern this case exemplifies: talent-and-document poaching aimed at TSMC-tier expertise rather than crude theft of finished products.
The Scale Behind One Case
Chen's indictment is not an isolated flashpoint — it sits atop a six-year enforcement program. Taiwan's Ministry of Justice Investigation Bureau (MJIB) has opened 166 investigations since 2020 into companies suspected of concealing Chinese ownership while operating in Taiwan's tech sector, completing 67 China-related trade-secret probes over the same period, with at least 36 convictions — 33 of them tied to semiconductor design or R&D operations (Rest of World). The MJIB's own releases show the recurring playbook: in a March 2026 sweep, roughly 185 agents searched 49 locations and questioned 90 people at 11 companies accused of using shell entities and disguised foreign investment to recruit Taiwanese chip engineers (MJIB press release). A near-identical operation between July 13 and August 4, 2026 — the run-up to Chen's indictment — deployed 330 agents across 64 locations, interviewing 114 people and naming firms including ACM Research Shanghai, Goke Microelectronics, and Zhuhai CosMX Battery (Investing.com/Reuters).
The Case for Vigilance
The strongest argument for this posture isn't abstract nationalism — it's that Taiwan's semiconductor sector is genuinely the target of a sustained, well-resourced state effort. China's chip self-sufficiency drive has run into real technical walls at leading-edge nodes, and Taiwanese engineering talent is one of the few shortcuts available. Rest of World's reporting traces this back to at least 2020, when an engineer at Blue Ocean Smart System discovered he'd been quietly working for a Nanjing-based team the entire time. Given that TSMC alone underwrites a large share of Taiwan's GDP and its leverage in cross-strait deterrence, a state that did nothing while its crown-jewel IP walked out the door piecemeal would be negligent, not liberal.
Why Proportionality Still Wins
Even granting all of that, the design of this enforcement regime deserves credit for restraint that critics of "economic security" laws often assume doesn't exist. The National Security Act's core-technology provision is narrow: it requires intent to benefit a specific set of foreign actors, applies only to designated "national core" technologies (not all trade secrets), and — as this case shows — is being used against an individual with specific, document-level evidence of intended transfer, not against TSMC's workforce broadly or against foreign investment as such. The conviction rate context matters too: Rest of World notes only around 20% of trade-secret theft cases culminate in charges, versus roughly 70% of the illegal-operation cases, suggesting prosecutors are not treating every recruitment contact as espionage. That is the proportionality test a pro-innovation, pro-speech publication should want applied: punish provable transfer of narrowly defined critical IP, not the ordinary cross-border movement of engineers, capital, or ideas that makes an open economy work. Taiwan's approach — six years of investigation, a handful of prosecutions, and a first indictment reserved for a case with recovered documents and a name for the shell company — reads as calibrated rather than paranoid. The real risk is mission creep: if "national core key technology" designations expand faster than the underlying threat, or if MJIB's raid cadence becomes a political instrument against ordinary foreign investment, the law's legitimacy erodes. For now, the record supports the narrower reading: this is deterrence aimed at a documented threat, not a chilling effect on Taiwan's famously globalized chip industry.