Internet now these days is a major hobby because people spent so much time surfing online. It can bring you benefits like helping you research of something, communication, education, entertainment, income and even success. However, it can also harm people? There's number of negative effects on this technology we have these days like being poor in social skills, it can also affect us physically. There's a study that one of the most dangerous effects of technology is obesity and mental health. Security and personal identifiable information also can be risk online. There’s a high case report these past years that people without realizing limits and doesn’t have essential knowledge was the victim.