Computer hackers are targeting Facebook users with an email scam that attempts to steal their passwords.

A report from web security outfit McAfee claims that users of the social notworking site were receiving emails that appeared to be from Facebook informing them their Facebook password had been reset and to click on an attachment to retrieve it.

The attachment is actually a "password stealer" that is installed when a user clicks on it and can potentially access any user name and password combination on that computer. McAfee warned that the threat is potentially very dangerous considering that there are over 350 million Facebook users who could fall for this scam.

The subject line of the scam email says "Facebook Password Reset Confirmation! Customer Support" and McAfee said that anyone receiving the password-reset message should delete it.