One of the problems is the ease of users to access social networks applications like wechat where one might have the risk of being in contact with people of bad intention. For example, the person might chat with you and ask to meet up in a certain place. That may be harmful to the user if the person has bad intention. Therefore, the user might be in danger for meeting up with he or she. Another major problem is the easy accessibility of information and sites. This may result in the addiction of smartphones and eventually cause the deterioration of work performance in schools or at workplace. They will not be able to concentrate during work and school hours because of constantly checking and looking at their smartphone. They are basically glued to them.