COLUMN-UPDATE 1-A Goldman trading scandal? Matthew Goldstein

-- Matthew Goldstein is a Reuters columnist. The views expressed are his own -- (Updates with comment from lawyer, wife in paragraphs 12-13)

By Matthew Goldstein

NEW YORK, July 5 (Reuters) - Did someone try to steal Goldman Sachs' secret sauce?

While most in the United States were celebrating the Fourth of July holiday, a Russian immigrant living in New Jersey was being held on federal charges of stealing secret computer trading codes from a major New York-based financial institution.

Authorities did not identify the firm, but sources say the institution is none other than Goldman Sachs (GS.N).

The charges, if proven, are significant because the codes that the accused, Sergey Aleynikov, tried to steal are the secret sauce to Goldman's automated stock and commodities trading business.

Federal authorities contend the computer codes and related-trading files that Aleynikov uploaded to a German-based website help this major financial institution generate millions of dollars in profits each year.

The platform is one of the things that gives Goldman an advantage over the competition when it comes to the rapid-fire trading of stocks and commodities. Federal authorities say the platform quickly processes rapid developments in the markets and using secret mathematical formulas, allows the firm to make highly-profitable automated trades.

The criminal case has the potential to shed a light on the inner workings of an important profit center for Goldman and other Wall Street firms. The charges also raise serious questions about the safeguards that Wall Street firms deploy to protect these costly-to-build proprietary trading systems.

The criminal case began to unfold on the evening of July 3, when Aleynikov was arrested by FBI agents at Newark Airport after returning from Chicago.

Aleynikov apparently had just started a job with another big firm in Chicago after leaving his previous employer in New York in early June. It appears that the financial institution allegedly victimized by Aleynikov had alerted federal authorities that its former employee might be up to no good.

On July 4, Aleynikov was processed on a "theft of trade secrets charge" in a criminal complaint. As of Sunday morning, he was still being held at the Metropolitan Correction Center in Brooklyn.

A Goldman spokesman declined to comment on the incident. A spokeswoman for the United States Attorney's Office in Manhattan did not comment.

Sabrina Shroff, Aleynikov's lawyer, says the facts will bear out that her client is innocent. She's hoping he will be released from custody soon.

His wife, Elina, says her husband is innocent. Speaking in a phone interview from the couple's New Jersey home, she says her husband worked hard for Goldman and has been a good citizen -- noting he's lived in the United States for 19 years. She seems mystified that federal authorities would arrest him on the eve of a holiday.

The Federal Bureau of Investigation, in charging Aleynikov, says he began working for the major financial institution in May 2007 as a computer programmer and left in early June. That matches the description of a man named Serge Aleynikov on the social networking site LinkedIn (the difference in spelling of the first name could not be immediately explained).