How to Use Facebook Settings to Hide From Strangers
If strangers are contacting you on Facebook, it is time to change your privacy settings so they can't see your profile or send you messages.
If strangers are contacting you on Facebook, it is time to change your privacy
settings so they ... How to Prevent Strangers From Seeing Your Facebook Profile
... When you block someone, they can't see your posts, tag you, start a
conversation, ...