A Today’s, time there are large number of users associated in social media sites. They uses various number of social networking software and app. People connected with another people who they know but sometimes they also attached with unknown people. People shares their ideas with another people from social networking sites. There are different types of data for sharing. In these data’s some data’s are very common and general which does not effect on the privacy but some data are very confidential which should not shared to every people .During in this situation when the confidential data are shared it can be misused by another people. So it is necessary that there should be some restriction apply to social networking sites for data security. There should be data uses authority so that only authorized person can share the important data. There should be validation requirement so that unauthorized person cannot access or share the data. It is very necessary thing to secure the data of social networking sites and also the value of social networking sites.