Illustration by Alex Castro / The Verge

Google reportedly ran a secret project called “Project Bernanke” that relied on bidding data collected from advertisers using its ad exchange to benefit the company’s own ad system, The Wall Street Journal reported. First discovered by newswire service MLex, the name of the project was visible in an improperly unredacted document Google had filed as part of an antitrust lawsuit in Texas.

A federal judge has since let Google refile the document under seal. But according to the Journal, “Bernanke” was not disclosed to outside advertisers, and proved lucrative for Google, generating hundreds of millions of dollars for the company. Texas filed an antitrust lawsuit against Google in December, alleging that the search giant was using…

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