Face book account security setting
Act before your face book account is hacked. While on Face book, look at your URL address; if you see http: instead of https: then you don’t have a secure session and you can be hacked. Go to Account Settings, Account Security and click Change. Check the first setting, "Secure Browsing (HTTPS).
Facebook has systems to detect the rare cases when an account is taken over and used to send spam. When this happens, we shut off access to the account. The next time you visit Facebook, we ask you to complete a few steps to re-secure the account.
You can read more about this process here.
If your account has been taken over and used to send spam, you should follow these steps immediately:
If a friend’s account has been taken over and used to send spam, you should follow these steps immediately:
You can find more information on how to stay safe on the Threats and Tips tabs as well as in our Help Center.