Follow these tips
Control visibility and privacy
Review the settings to learn who can see your profile and posts and adjust the settings to match your comfort level for sharing your information.
Routinely check your settings
Social media services change features and settings all the time and may change who sees your posts. Regularly check your settings to make sure your personal information isn’t broadcast to the world.
Respond to a breach
Change your password if you hear that your social media site has been breached. This happens more than you think: LinkedIn reported an incident in 2012 in which 6 million user account passwords were stolen by hackers.