How do I find out who hacked my Facebook?

[theinvisiblewombat]

It's unlikely that you'll find out the identity of the person hacking your account, but it is probably someone on your friends list or someone that you know. Notify facebook. In security settings, close out all of the "active sessions" that are open. You can view the browser used, general location, and time but that is about all the info you will get from facebook, since it strips i.p. addresses from users. Enable all of the security settings as well. Disable subscribers and make all of your personal info (phone, email, location, friends-private). You need to get 2 brand new emails (with different passwords) and first and link them together (so you can get back in if you get locked out). Don't add your phone or your real name to these emails. Now, add one of the new emails to your facebook account and remove your old email from facebook. After you have removed the old and verified the new email, change your facebook password. Now change the password on the email that you took off of facebook. Use different passwords for each account that are a mix of letters, upper and lower, numbers and symbols. Don't threaten because that will just provoke further attacks. If all else fails, close your account and make a fresh new, private one.