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Linwei Ding Case Explained: What the Former Google Engineer Was Convicted Of
As of August 24, 2026, Linwei “Leon” Ding still has seven convictions for stealing Google AI trade secrets. Prosecutors said Ding copied thousands of pages about Google’s AI supercomputing hardware and software while secretly affiliating with two Chinese technology ventures.
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Key takeaways
- As of August 24, 2026, Linwei “Leon” Ding still has seven convictions for stealing Google AI trade secrets.
- Prosecutors said Ding copied thousands of pages about Google’s AI supercomputing hardware and software while secretly affiliating with two Chinese technology ventures.
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openai.comCreate a landscape editorial hero image for this Studio Global article: What happened in the case of former Google software engineer Linwei “Leon” Ding, including the confidential AI hardware and software informa. Article summary: Linwei “Leon” Ding, a former Google software engineer, was convicted by a San Francisco jury in January 2026 of stealing Google AI trade secrets, but the court later set aside the seven economic-espionage convictions. Th. Topic tags: general, government, news, general web. Style: premium digital editorial illustration, source-backed research mood, clean composition, high detail, modern web publication hero. Use reference image context only for broad subject, composition, and topical grounding; do not copy the exact image. Avoid: logos, brand marks, copyrighted characters, real person likenesses, fake screenshots, UI text, readable text, watermarks, charts with
Former Google software engineer Linwei “Leon” Ding was found guilty in January 2026 of taking confidential information tied to Google’s artificial-intelligence systems. But the case changed significantly on August 20: U.S. District Judge Vince Chhabria set aside all seven economic-espionage convictions while leaving seven trade-secret-theft convictions in place. 1
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Ding’s sentencing on the remaining convictions was scheduled for September 1, 2026. As of August 24, no sentence had been imposed. 5
What information did Ding allegedly take?
The government said Ding copied thousands of pages of Google material containing trade secrets related to AI technology and supercomputing infrastructure. The information covered the hardware and software used to run AI workloads, including systems involving Google’s Tensor Processing Units and graphics-processing-unit infrastructure, as well as the way those systems were connected, managed, and deployed. 1
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The initial case materials alleged that Ding transferred sensitive Google information from the company’s network to a personal account while he was still employed by Google. The original indictment, returned in March 2024, charged him with four counts of trade-secret theft.
Why were two sets of charges filed?
The superseding indictment returned in February 2025 charged Ding with seven counts of economic espionage and seven counts of theft of trade secrets. Each set of counts corresponded to the government’s allegations involving seven categories of Google trade secrets. 3
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The two offenses had different legal requirements:
- Trade-secret theft: The prosecution had to prove that Ding unlawfully took or appropriated protected business information.
- Economic espionage: The government also had to prove the required connection to a foreign government or its instrumentality—in this case, that Ding intended or knew his conduct would benefit the Chinese government.
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That distinction became decisive after trial. The judge’s ruling did not find that the government failed to prove the taking of Google’s confidential information. It found that the evidence was insufficient for the additional government-benefit element required for the espionage convictions. 5
What was the jury’s verdict?
After an 11-day trial in San Francisco, the jury found Ding guilty on all 14 counts on January 29, 2026: seven counts of economic espionage and seven counts of theft of trade secrets. 1
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The government alleged that Ding was secretly affiliated with two Chinese technology ventures while working at Google. Prosecutors said he served as chief technology officer for one venture and helped establish another, and that the stolen information was intended to help those businesses compete. 1
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What did Judge Vince Chhabria decide?
On August 20, Judge Chhabria entered a post-verdict judgment setting aside the seven economic-espionage convictions. He concluded that prosecutors had not presented sufficient evidence that Ding intended, or knew, that his conduct would benefit the Chinese government or an instrumentality of it. 5
The seven trade-secret-theft convictions survived. In practical terms, Ding was cleared of the part of the verdict requiring proof of a Chinese-government benefit, but he remained convicted of unlawfully taking Google’s AI-related trade secrets.
What penalties could apply?
The statutory maximum for each economic-espionage count was up to 15 years in prison. Each trade-secret-theft count carries a maximum of up to 10 years in prison. 1
Those figures are maximums, not a prediction of Ding’s sentence. The judge determines the actual punishment through the federal sentencing process, and the economic-espionage counts were no longer part of the convictions after the August ruling. Sentencing remained scheduled for September 1, 2026, on the seven theft convictions. 5
Case timeline
- March 5, 2024: A grand jury returned the original indictment charging four counts of trade-secret theft.
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- March 6, 2024: The indictment was unsealed and Ding was arrested, according to the Justice Department’s case announcement.
- February 4, 2025: A superseding indictment expanded the case to seven economic-espionage counts and seven trade-secret-theft counts.
- January 2026: The case went to an 11-day federal jury trial in San Francisco.
- January 29, 2026: The jury returned guilty verdicts on all 14 counts.
- August 20, 2026: Judge Chhabria set aside the seven economic-espionage convictions and upheld the seven theft convictions.
- September 1, 2026: Sentencing was scheduled on the remaining trade-secret-theft convictions.
What was Google’s role?
Google was the alleged victim and the source of the confidential-information evidence at the center of the prosecution. The Justice Department said the company detected and investigated suspicious activity, took steps to protect its systems and information, and cooperated with law enforcement during the investigation. 1
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The broader significance of the case lies in the difference between proving that confidential technology was stolen and proving the specific foreign-government connection required for an economic-espionage conviction. In Ding’s case, the judge’s ruling preserved the theft verdicts while removing the government-benefit element from the final judgment.
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As of August 24, 2026, Linwei “Leon” Ding still has seven convictions for stealing Google AI trade secrets.
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As of August 24, 2026, Linwei “Leon” Ding still has seven convictions for stealing Google AI trade secrets. Prosecutors said Ding copied thousands of pages about Google’s AI supercomputing hardware and software while secretly affiliating with two Chinese technology ventures.