Phishing Scam Spreading on Twitter: Suggestion: do NOT log in to your Twitter account through any site other than Twitter.com.
[act.: Monday Morning Madness: This morning we discovered 33 Twitter accounts had been "hacked" including prominent Twitter-ers like Rick Sanchez and Barack Obama (who has not been Twittering since becoming the president elect due to transition issues). We immediately locked down the accounts and investigated the issue. Rick, Barack, and others are now back in control of their accounts.
Following The Twitter Hack Trail To DigitalGangster: One thing that didn’t make a lot of sense about the 33 celebrity Twitter accounts hacked this morning - the messages left on the various accounts weren’t consistent and were clearly written by different people with different agendas.
Twitter Hack: How It Happened and What's Being Done]