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Meanwhile, mobile Twitter users are advised to steer clear of any unknown goo.gl links that pop up in their feeds.
Twitter has been the target for a multitude of worms since its inception, in part because of its reliance on shortened links that often mask the origins of an infected site.
In September, the microblogging site was subjected to a massive a href="http://www.crn.com/news/security/227500393/twitter-com-shuts-down-onmouseover-attack.htm">Twitter worm that wreaked havoc on the site by retweeting users' posts, and sending pornographic and multicolored tweets from their accounts, which occurred when they rolled over the posts with a mouse. The attack exploited a cross-site scripting vulnerability that re-emerged in August with a Twitter site update.
And it will likely get worse before it gets better, experts say. Ghosh said that Twitter users could expect similar worm attacks in 2011.
"It’s the type of attacks that we're seeing now in 2010, the attacks are focused on exploiting on users' social networks. It's no longer about getting a user to go to a malicious site," he said. "In this particular case, there's not a lot Twitter can do about it, unless they were to server every single line, and somehow able to determine that the links are malicious."
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