1- Choose Strong Password
Don't use your Facebook password anywhere else online.
Avoid including your name or common words. Your password should be difficult to guess.
2- Create new email for facebook only. (optional but recommnded)
3- Edit Profile / Edit About info / Contact Info / Hide your Email from contact and basic info.
4- Activate Alerts (Email & messenger & Facebook app)
Facebook will let you know if your account is logged into from an unrecognized device or browser.
5- Trusted Contacts
6- Two Factor Authentication & Recovery Code
7- Always review sessions
8- Mobile Screen Lock & Sim Card Lock & If you are using PC please set login and password
9- Sgin up with facebook ( Don't Use this Feature)
10- Check apps who have access
11- Privacy Friend list = Only me & Search Engins = No
12- Timeline and Tagging ( Tage Review = Yes & Timeline Review = Yes)
13- Run anti-virus software on your computer / Mobile.
14- Think before you click or download anything.