Attackers are using Twitter to steal user names and passwords. The attack starts with a direct message from the phishers. The messages purport to link to something funny. Or, they claim to link to a picture or video of the recipient. Two examples are "LOL, this is funny" and "LOL, is this you."
The messages contain a link to bzpharma.net. They open to a page where hackers can steal your user name and password. If you see one of these messages, don't click on it!