- Associated Press - Saturday, February 5, 2011

WASHINGTON (AP) - Investigators are trying to identify computer hackers who have broken into the Nasdaq stock market’s computer network repeatedly over the past year, a federal official tells The Associated Press.

The official says that the hackers haven’t compromised the exchange’s trading platform and that investigators are looking into a range of possible motives for the attacks _ from financial gain to a national security threat.

The official spoke on condition of anonymity because the inquiry by the FBI and Secret Service is continuing.

Nasdaq officials declined to comment.

Nasdaq is the largest electronic securities trading market in the U.S. with more than 2,800 listed companies.

A telephone message left with the FBI’s office in New York was not immediately returned.

The Secret Service initiated the probe involving New York-based Nasdaq OMX Group Inc. last year. White House officials also have been informed.

In 1999, hackers infiltrated the websites of Nasdaq and the American Stock Exchange leaving taunting messages, but Nasdaq officials said then that there was no evidence the break-ins affected financial data.



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