How does also prevent hacked accounts

To prevent hacking hacking facebook.

  1. Go to settings
  2. Click security
  

3rd. Click the login approvals

4th. Click the "Require a security code to access my account from unknown browsers"

5th. Put the cell phone number you'll have done the code.

Final words: To avoid actually hacked the account. You must use a symbol example password  "Thisismypassword # $! @ # &"