Social networking sites, sometimes referred to as “friend-of-a-friend” sites, build upon the concept of traditional social networks where you are connected to new people through people you already know. The purpose of some networking sites may be purely social, allowing users to establish friendships or romantic relationships, while others may focus on establishing business connections. As the popularity of social networking sites continues to increase, the nature of these sites introduces security risks. Take these precautions to protect yourself. Limit the amount of personal information you post. Remember that the Internet is a public resource.
Be wary of third-party applications. Always check privacy policies.