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Ex-Google Engineer Convicted of Stealing AI Secrets for China

Former Google software engineer Linwei Ding was convicted in San Francisco on all 14 counts for stealing confidential AI technology and economic espionage linked to Chinese companies. Read more.

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Former Google Engineer Convicted of Stealing AI Trade Secrets, Jury Says Espionage for China-Linked Firms

A federal jury in San Francisco convicted former Google engineer Linwei Ding on January 29, 2026, finding him guilty on 14 counts of theft of trade secrets and economic espionage for allegedly stealing confidential AI technology to benefit China-linked firms.

  • Verdict: Ding was convicted on 14 counts — seven theft of trade secrets and seven economic espionage charges — after an 11-day federal trial.
  • Scope of theft: Prosecutors say he copied more than 1,000 unique files (~14,000 pages), including technical material on TPUs, GPUs and SmartNICs.
  • Ties to China: Alleged transfers occurred May 2022–April 2023; prosecutors say Ding met investors, served as a CTO for Rongshu, founded Shanghai Zhisuan, and pursued Chinese talent programs.
  • Potential penalties: Counts carry maximum sentences up to 10 years (theft) and 15 years (economic espionage) per count; sentencing is pending.

Trial and verdict

An 11-day trial in U.S. District Court in San Francisco ended with a unanimous guilty verdict on January 29, 2026. The jury convicted Linwei Ding on all 14 counts. Federal prosecutors described the outcome as a major victory for national security and for companies that rely on trade secrets to remain competitive, calling the prosecution economic espionage tied to advanced AI technology. The Department of Justice and other officials emphasized the message this sends about corporate espionage. See the Justice Department press release for the official statement.

What prosecutors say he took

Ding, hired by Google in May 2019 to work on supercomputing data centers that train and deploy large AI models, allegedly had access to sensitive internal documents on hardware and software used for training systems. Prosecutors contend he copied over 1,000 unique files — roughly 14,000 pages, including 105 core documents and uploaded them to personal cloud accounts while attempting to mask the transfers. Key technical areas allegedly included TPUs, GPUs and SmartNICs, materials prosecutors say would help build and operate advanced AI infrastructure. Reporting and court filings are summarized by The Register and Los Angeles Times.

Timeline and ties to China

Prosecutors say the alleged theft occurred between May 2022 and April 2023. According to trial exhibits, Ding traveled to China from October 2022 to March 2023, during which he reportedly met with investors, accepted a chief technology officer role at a company called Rongshu, and founded Shanghai Zhisuan Technology Co. Ltd. He also applied to Chinese talent programs and told investors he could help build AI supercomputers and custom chips. Coverage and details are available from The Register and the Los Angeles Times.

How the alleged scheme unfolded

Prosecutors say Ding used personal Google Drive accounts to store stolen files and took steps to evade detection by company security tools. Court records introduced at trial included a December 2023 “self-deletion affidavit” in which Ding claimed not to have retained company data — despite evidence of earlier uploads. Google flagged a presentation Ding gave in China, suspended his access and seized devices; the FBI later executed a search warrant after Google provided records to investigators. See reporting by The Register for further chronology.

Defense position and judge’s rulings

Ding’s defense argued he never sold or used Google documents, disputed that Google sufficiently protected the files, and challenged claims the materials would benefit the Chinese government. Judge Vince Chhabria denied motions to dismiss, finding the government presented sufficient evidence for a jury. After the verdict, the court released Ding pending sentencing, with the judge noting he was not a flight risk. See coverage in The Register.

Statements from officials and Google

Google vice president Lee-Anne Mulholland said the company was “grateful to the jury for making sure justice was served today, sending a clear message that stealing trade secrets has serious consequences.” The U.S. Attorney’s Office for the Northern District of California said the jury sent a “clear message that the theft of this valuable technology will not go unpunished,” and the FBI’s San Francisco office called the theft a threat to U.S. technological edge and competitiveness. Read the official DOJ release at Justice Department press release.

Potential penalties and next steps

Under federal statutes, Ding faces maximum sentences up to 10 years for each theft count and up to 15 years for each economic espionage count. In practice, sentences may be stacked and fines could be imposed. A status conference is scheduled for February 3, 2026, with sentencing to follow under federal scheduling. Current court filings do not specify whether the allegedly stolen documents were integrated into Chinese systems or remain with third parties. Read more via The Register and the Los Angeles Times.

Why the case matters

Officials described the verdict as the Justice Department’s first major win in an AI-related economic espionage prosecution. For industry, the case underscores how insiders with privileged access can pose serious risks. For national security, it highlights concerns about technology transfer that could narrow the U.S. lead in AI and high-performance computing. The outcome may influence corporate security practices, export and hiring policies, and enforcement priorities.

Implications for Hesperia, California

Economic impact: Though Hesperia is not Silicon Valley, stronger federal enforcement can protect local suppliers and defense-related jobs; tighter rules could add compliance costs for small firms in San Bernardino County.

Political consequences: The verdict is likely to resonate with conservative voters prioritizing national security and may spur calls for stricter vetting of foreign talent programs and clearer rules on sensitive tech work.

Social effects: Local students and engineers should be aware that misusing proprietary systems carries criminal risk; colleges and trade schools may add ethics and data-use training.

Practical steps: Small companies should review employee access controls and cloud policies; community leaders can request federal outreach from partners such as the FBI on protecting trade secrets. Residents who see suspicious recruiting should report it to authorities.

Sources and further reading

“The jury sent a clear message that the theft of this valuable technology will not go unpunished,” the U.S. Attorney’s Office for the Northern District of California said following the verdict.

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Aaron Yates

Aaron Yates is a senior national crime and justice reporter for Times Media Service, based in the Washington bureau. Yates covers criminal investigations, federal prosecutions, fraud and the courts, following law enforcement agencies and the legal issues surrounding major cases nationwide. Yates holds a master's degree in criminal justice and grew up in Bridgeport, Connecticut.

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