Facebook is the most popular social media site among teens; it is important thatparentsunderstandrecentchangesto itsprivacyrules that affect teens.Manyparents knowFacebook allows users to create an online profile that includes personal information.Most social media allow users to choose how much information they want to share publicly with theWorldWideWeb through privacy settings. Privacysettingsare important toprotect teens fromhavingtheir personal information viewedby unwanted audiences such as adult strangers ormarketing companies. On Facebook,marketers are allowed touseaprofile owner’s content for their advertisements and useaprofileowner’s information for their researchpurposes. These actions happen without asking the profile owner for permission. Recently, Facebook changed its privacy policies for teen users. In the past, teens’ privacy settings were automatically set to only allow access to information for friends and friends of friends. Facebook nowallows teens to show their profiles or selected posts to theentireonlinepublic.Marketers cannowaccess largeamounts of data based on teens’ profiles, what links they click on, and what they “like” onFacebook. Furthermore, teensmaynot alwaysunderstand the shortand long-term consequences of posting personal information in a public way online. It is important to know that many other popular social media sites, such as Twitter, Tumblr, and YouTube, are sites that emphasizepublic access andhave limited, if any,privacy settings.Onmany of these sites, any information your teen posts is available publicly.