Cyber criminals have targeted the NASDAQ Community forum with a password-stealing attack, looking to gather sensitive information that could be used to mount a larger, more costly campaign.
NASDAQ sent out an email warning users that their account information may have been compromised, but confirming no trading or stock exchange information or systems had been affected by the breach. NASDAQ is yet to confirm how many of the community users have been affected and at the time of publishing had not responded to V3's request for comment.
NASDAQ has since taken the community website offline to upgrade its systems to plug the breach. NASDAQ has been a common target of criminals and was hit by a more serious cyber attack in 2011.
While the information stolen is not necessarily dangerous, it could be used by criminals to mount subsequent, more advanced attacks. In general the information is used by criminals to create more tailored phishing messages, or make more intelligent password guesses when attempting to infiltrate victims' main work accounts.
However, F-Secure analyst Sean Sullivan told V3 the information stolen from NASDAQ could theoretically be used to mount an even more dangerous attack. "How bad is this? That really depends on how forthcoming the NASDAQ community admins have been," he said.
"Imagine this: Suppose the NASDAQ community forum wasn't just compromised for its users' passwords – but also to use it as a watering hole. You thought the Twitter, Facebook, Apple, Microsoft watering hole attack compromises via the iPhone Dev SDK forum was bad? Well, I think that would be nothing compared to the kind of damage that could be done via NASDAQ."
A watering hole attack is a tactic commonly used by hackers to target specific groups. It sees them infiltrate a commonly visited website by people within the target industry and lace it with malware, letting them infect a large number of people, without having to mount multiple attacks.
The potential value of password and account information has made it an increasingly valuable commodity for cyber criminals, with many selling it on cyber black markets. Most recently Webroot researcher Dancho Danchev reported uncovering a Russian cyber gang selling thousands of users' Skype and Twitter password details on a newly created blackmarket.
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