The attack tries to steal your user name and password. Quite often these are the same as used for personal email accounts. One friend of mine lost access to his Hotmail account in a similar attack via Facebook last year.

Phishers hit Facebook with scam messages – Digital Lifestyle – Macworld UK: “Facebook users were hit Wednesday with a phishing attack that tried to steal names and passwords from users of the popular social network.

In the attack, people are sent phoney e-mail messages, appearing to come from Facebook, that try to send them to a malicious Web site, Fbaction.net, which looks like a Facebook log-in page.

The Fbaction.net Web site was live Wednesday afternoon, but Facebook is working to blacklist the domain and hoping to have the site shut down, according to a Facebook spokesman. ‘We are aware of this phishing domain and have already begun to take action,’ the company said in a statement.”