There's a shitload of scams on Twitter to access your log-in info. You get a message that says either "is this a picture of you?" "is this you in the video?" or "someone said something nasty about you on this blog" and then if you click on the address they provide, there's a log-in for what looks like Twitter. Always be suspicious when people you don't know are giving you anything to click on, even a friend whose account could have been tapped into. Contact that friend and see if they actually send you the link. Never give log-in info.