Please be carefull using Twitter.
New worm taunts Oprah, Ashton Kutcher, Twitter..
Graham Cluley, Apr 18, 2009
Another weekend, another attack on Twitter users. On the same day that it was revealed that 17-year-old Mikeyy Mooney had been offered a job on the back of the worms he had written, a new version of his Twitter worm was unleashed.
Interestingly, the worm is referencing the account identites of various celebrities, including Ashton Kutcher (who has more than a million followers), and chat show queen Oprah Winfrey.
It's possible that this is being done in an attempt to entrap celebrities with a significant online following. Can you imagine the impact an attack could have if it managed to ensnare a Twitter user with more than a million followers?
Although Twitter's security team claims that it has now taken steps to ensure that the systems can not be exploited by this way again, it would be a braver man than me who would put money on Twitter being untroubled by security issues in future.
More......
http://www.darkreading.com/blog/archives/2009/04/new_worm_taunts.html