Open Facebook and log in
Go to Settings & privacy
Tap Settings
Open Privacy Checkup
Set Who can see your future posts to Friends or Only me
Set Who can see your friends list to Only me
Set Who can look you up using your email address to Friends or Only me
Set Who can look you up using your phone number to Friends or Only me
Turn off search engine linking to your profile
Review and limit past posts
Set story privacy to Friends or Custom
Limit profile information visibility to Friends or Only me
Review tagged posts and timeline settings
Turn on Timeline and Tagging review
Change app and website permissions if needed
Check profile photo and cover photo visibility
Remove public contact details from your profile
Block unwanted users if necessary