Open Facebook and log in
Tap your profile picture or menu
Go to Settings and privacy
Tap Settings
Open Audience and visibility
Tap Profile information, Posts, Stories, or other privacy options
Set each option to Friends or Only me
Turn on Profile Lock if available
Review Privacy Checkup
Limit who can see your future posts
Limit who can see your friends list, phone number, email, and profile details
Change past posts to Friends or Only me
Disable public search engine linking if needed