Hackers penetrated Nasdaq's network

By Stacy Cowley, tech editor


NEW YORK (CNNMoney) -- Hackers have repeatedly made their way into the computer network that runs the Nasdaq Stock Market during the past year, the Wall Street Journal reported on Saturday.

The part of the system that executes trades was not breached, sources told the newspaper. However, other parts of Nasdaq's infrastructure were accessed. Investigators from the Secret Service and Federal Bureau of Investigation are looking into the matter, the WSJ reported.

"So far, [the perpetrators] appear to have just been looking around," one unidentified person familiar with the situation told the newspaper.

The NASDAQ OMX Group (NDAQ) subsequently confirmed in a written statement that one of its Web applications appears to have been breached.

The affected application, a communications tool for corporate boards called Directors Desk, operates independently from Nasdaq's trading systems.

"Through our normal security monitoring systems we detected suspicious files on the U.S. servers," Nasdaq wrote. "The files were immediately removed and at this point there is no evidence that any Directors Desk customer information was accessed or acquired by hackers."

The WSJ said investigators have been unable to follow the trail back to any specific individual or country, and are unsure of whether they have plugged all of the network's potential security gaps.

"Cyber attacks against corporations and government occur constantly," Nasdaq said in its prepared statement. "NASDAQ OMX remains vigilant against such attacks. We have been working in cooperation with the government's ongoing investigations and have received their technical advice."

Financial networks are lightning rods for hackers and employ some of the industry's most stringent security defenses. Mischief-makers occasionally break into or slow down the public websites of major financial institutions, but successful intrusions on their internal networks are rarer -- and rarely come to light when they happen.

Hackers publicly attacked Nasdaq's website in 1999, leaving a taunting message on the site. The attack was part of a spate of invasions on dozens of sites across the Web, exploiting a weakness in a commonly used Microsoft server system. Nasdaq's internal systems were unaffected by that breach. To top of page

Frontline troops push for solar energy
The U.S. Marines are testing renewable energy technologies like solar to reduce costs and casualties associated with fossil fuels. Play
25 Best Places to find rich singles
Looking for Mr. or Ms. Moneybags? Hunt down the perfect mate in these wealthy cities, which are brimming with unattached professionals. More
Fun festivals: Twins to mustard to pirates!
You'll see double in Twinsburg, Ohio, and Ketchup lovers should beware in Middleton, WI. Here's some of the best and strangest town festivals. Play
Index Last Change % Change
Dow 17,426.16 -252.54 -1.43%
Nasdaq 4,705.16 -66.60 -1.40%
S&P 500 2,036.73 -20.36 -0.99%
Treasuries 1.80 -0.02 -1.37%
Data as of 1:17pm ET
Company Price Change % Change
Microsoft Corp 42.85 -4.16 -8.85%
Bank of America Corp... 15.73 -0.12 -0.76%
Apple Inc 111.38 -1.72 -1.52%
Intel Corp 34.15 -1.66 -4.62%
Cisco Systems Inc 26.96 -1.02 -3.63%
Data as of 1:02pm ET

Sections

Big companies are giving big red flags about their profit and sales outlooks for 2015. More

You need a lot less to get into the Top 1% in Arkansas than you do in Connecticut. More

Google to bring high-speed Internet service to Atlanta, Charlotte, Nashville and Raleigh-Durham. More

On demand delivery startup WunWun is expecting its order volume to double by the time they close up shop on Monday. All thanks to a blizzard. More

CNNMoney/PayScale's top 100 careers with big growth, great pay and satisfying work. More

Most stock quote data provided by BATS. Market indices are shown in real time, except for the DJIA, which is delayed by two minutes. All times are ET. Disclaimer.

Morningstar: © 2015 Morningstar, Inc. All Rights Reserved.

Factset: FactSet Research Systems Inc. 2015. All rights reserved.

Chicago Mercantile Association: Certain market data is the property of Chicago Mercantile Exchange Inc. and its licensors. All rights reserved.

Dow Jones: The Dow Jones branded indices are proprietary to and are calculated, distributed and marketed by DJI Opco, a subsidiary of S&P Dow Jones Indices LLC and have been licensed for use to S&P Opco, LLC and CNN. Standard & Poor's and S&P are registered trademarks of Standard & Poor’s Financial Services LLC and Dow Jones is a registered trademark of Dow Jones Trademark Holdings LLC. All content of the Dow Jones branded indices © S&P Dow Jones Indices LLC 2015 and/or its affiliates.