Sure, there are things that hackers usually have access to before they can hack Facebook account. If you noyicce lately, you will see a very close friends account suddenly change name and all pictures vanish at once. It is not anything farther than the work of the hackers. The next they do after getting your Facebook account is to start sending friend request to new people since all your former friends will be deleted. They get hold of the new friend and scam them.
Another thing they usually do is to keep the Facebook name and start using it to share bad stuffs like sex pictures and videos. It is just not funny.
Recently, a beautiful lady sent me friend request and I accepted. The first message I got from her was ; a request for my Facebook password for her to help me activate mtn free browsing on my account. So I gave her wrong code. Next thing she blocked me.
I think the first thing they do is to be among your friend list, get access to sensitive data's like phone number,full date of birth and many more.