US judge overturns part of ex-Google engineer Linwei Ding's conviction for stealing AI trade secrets for Chinese firms
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| Source: Techmeme | Original article
A U.S. federal judge has partially overturned the conviction of former Google engineer Linwei Ding, who was found guilty of stealing AI trade secrets for two Chinese companies.
A U.S. federal judge has partially overturned the conviction of former Google software engineer Linwei Ding, who was found guilty of stealing artificial‑intelligence trade secrets for two Chinese companies. District Judge Vince Chhabria in the Northern District of California ruled that the government had not proven Ding intended or knew his actions would benefit the Chinese government – a key element required for the seven economic‑espionage counts he faced. Those counts were vacated, but the jury’s verdict on the seven theft‑of‑trade‑secrets charges was left intact.
The original verdict, handed down in January 2026, found Ding guilty on all fourteen counts, exposing a high‑profile example of alleged AI‑related espionage. While the economic‑espionage convictions carried potential sentences of up to 15 years per count and fines of $5 million, the remaining theft convictions still expose Ding to substantial prison time, though the exact penalty remains to be set.
The decision matters because it narrows the scope of what prosecutors must demonstrate to secure economic‑espionage convictions involving AI technology. It also signals that courts may be cautious about attributing foreign‑government intent without clear evidence, a factor that could affect future cases against engineers and researchers accused of similar conduct.
The next steps include sentencing on the remaining theft charges, which could still result in a lengthy term, and a possible appeal by the Justice Department seeking to reinstate the economic‑espionage convictions. Observers will watch how the case influences the broader U.S. strategy on AI trade‑secret protection and the legal landscape for talent moving between American tech firms and foreign firms.
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