"There's a new Facebook email scam going around now," John Carter warns. "It has all the appearances of coming from Facebook, but it didn't. In the email, it says that your account has had some suspicious activity and that it has been blocked. You can unblock the account by clicking on the link in the email. DON'T! "
And here's what to do, John says, "To confirm that your Facebook account is okay, just go to facebook.com and log in. Not surprisingly, you'll be able to log in with no problem.