Judge Throws Out AI-Espionage Counts Against Ex-Google Engineer

A federal judge has thrown out the most serious charges against Linwei Ding, the former Google engineer convicted this year of stealing the company's AI secrets. On 20 August, US District Judge Vince Chhabria in San Francisco set aside seven counts of economic espionage, ruling that prosecutors had not shown Ding knew or intended his theft would benefit the Chinese government, according to Reuters.

The theft itself still stands. Chhabria left the jury's verdict on seven counts of trade-secret theft in place, saying the evidence there was sound. What the judge rejected was the harder claim, the one that carries far heavier penalties and a national-security weight: that Ding was acting to help a foreign state.

What Ding took

Ding, a Chinese national, was found guilty in January after an eleven-day trial. Prosecutors said he copied thousands of pages of confidential material about the hardware and software Google uses to run its supercomputing data centres, the systems that train its largest models. According to the Justice Department, he did so while quietly tied to two AI companies in China.

Why the distinction matters

Economic espionage and trade-secret theft can look alike from the outside. The legal line between them is intent. To convict on espionage, the government has to prove the defendant meant to benefit a foreign government, not merely a foreign company or himself. Chhabria found that bridge unbuilt. It is a reminder of how much harder national-security cases are to win than they are to charge, even when the underlying conduct is barely in dispute.

The ruling arrives as Washington leans harder on the movement of AI technology across borders. Only this week the US began pressing dozens of countries to choose between American and Chinese AI systems. Ding's case sits at the human scale of that same contest: not chips on a shipping manifest, but code in a personal account. He still faces sentencing on the theft counts. The espionage label, for now, is gone.