Twitter Suspends 'TweetDeck' After App Is Hacked

NEW YORK (CBS/AP) — A tweet containing computer code propagated itself through Twitter Wednesday by taking advantage of a security flaw in Twitter's TweetDeck application.

In response, Twitter shut down the application's access to tweets for several hours, but it appeared to be back online as of 11:30 a.m. PST.

The tweet is automatically "retweeted," or sent out again, when processed by TweetDeck. Affected tweeters saw pop-up windows on their screens. The tweet was retweeted tens of thousands of times Wednesday.

Twitter, which owns TweetDeck, initially told TweetDeck users to log out and log back in. When that proved ineffective, it shut down the application's access to tweets.

It's not the first time tweets containing JavaScript code have self-propagated through security holes in Twitter. The last major outbreak was in 2010.

(TM and © Copyright 2014 CBS Local Media, a division of CBS Radio Inc. and its relevant subsidiaries. CBS RADIO and EYE Logo TM and Copyright 2013 CBS Broadcasting Inc. Used under license. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed. The Associated Press contributed to this report.)