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Expert defends finding that Chinese national didn’t steal trade secrets from Google

By Amy Miller ( December 5, 2025, 23:49 GMT | Insight) -- An expert who concluded that a former Google engineer did not steal artificial intelligence trade secrets that could help startups in China defended his qualifications and technical knowledge at a hearing in San Francisco, California. The US Department of Justice is seeking to exclude expert testimony from Isaac Pflaum, a senior director of software litigation at Quandary Peak Research, who found the trade secrets Linwei Ding allegedly stole from Google are insufficient to “replicate” or “recreate” Google’s systems.An expert who concluded that a former Google engineer did not steal artificial intelligence trade secrets that could help startups in China defended his qualifications and technical knowledge at a hearing Friday in San Francisco, California....

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