Expert Says Goldman Code Contained Open-Source Software

"Federal prosecutors have alleged that Sergey Aleynikov secretly copied Goldman Sachs's confidential source code for its high-frequency trading platform in his last days at the investment bank and uploaded it to a server in Germany. Prosecutors have alleged that Mr. Aleynikov intended to use it to build a similar trading platform at his new employer, Teza Technologies LLC.

"Benjamin Goldberg, an associate professor in New York University's computer science department, testified that the downloaded code he examined contained 'lots of open source software.'

Open-source, or freely available, code and Goldman's proprietary code were 'all mixed together' in the downloaded material, Mr. Goldberg said."

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