Phishing is the most commonly used method to hack Facebook. There are variety of methods to carry out phishing attack, In a simple phishing attacks a hacker creates a fake login page which exactly looks like the real facebook
page and then asks the victim to login into that page, Once the victim logins through the fake page the victims "Email Address" and "Password" is stored in to a text file, The hacker then downloads the text file and get's his hands on the victims credentialsProcedure :
Facebook fake login page are available for free to download
After you download the files, Open login.php,with a note pad and search for the term www.yoursite.com and replace it with the site address where you want the victim to be redirected ,finally save it.
Then create an account at Free web hosting site like 110mb.com , T35.com or ripway.com
Then upload both the files (fake.html , login.php ) to your hosting account and send the fake.html(fake facbook login page) link to your victim
Now when the victim enters all his credentials, like login name and password in our fake login page and when he clicks login He will be redirected to your site
Now to see the victims id ,password, login to your hosting account "110mb.com " where you will see a new file "log.txt" .Open it to see the victims user id and the password