Sergey Aleynikov (born 1970) is a former Goldman Sachs computer programmer. Between 2009 and 2016, he was prosecuted by NY Federal and State jurisdictions for the same conduct of allegedly copying proprietary computer source code from his employer, Goldman Sachs, before joining a competing firm. His first prosecution in federal court in New York ultimately resulted in acquittal by the United States Court of Appeals for the Second Circuit. The outcome of his second prosecution and trial in New York state court was a split verdict dismissed by court, which acquitted him on all counts. One count in that order of dismissal was later overturned by New York Court of Appeals, which took a very broad interpretation of the statute, and on recommendation of prosecutors he was sentenced to time served without punishment. The same New York Court of Appeals denied his petition to appeal on double jeopardy grounds. His story inspired Michael Lewis's bestseller ''Flash Boys''.
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