As technology advances, children are becoming quite adept at using smart phones, surfing the web, posting pictures, etc. So it may be important to sit your child down and teach them one quick lesson about the Internet:
What happens on the Internet, Stays on the Internet…FOREVER
And as parents, before you hand over that phone to provide some extra entertainment when you get stuck in line at a restaurant, you may want to make sure all other applications are locked down, you have signed out of your email and other social networking sites, and that before anything can be sent a passwords must be entered.
(Source: Infosec Island)