Those pesky cyber criminals are phishing for Facebook account details.
This morning my email inbox contained 22 emails apparently from Facebook. I've listed the email subjects and their frequency below:
Facebook Update Tool 
Facebook Account Update 
New login system 
Needless to say, these are not genuine communications sent by the real operators of Facebook. For example, the 'New login system' email invites me to update my account so I can take advantage of a "safer and more enjoyable" online experience, and yet the link provided points to www.facebook.com.poresawt.eu, which is clearly not www.facebook.com.