Nowadays, the Internet has become a bridge that connects people all over the world. Besides its paramount importance, it also poses hidden risks to users. In the first place, it can put severe strains on our family and social relationships. If users are addicted to the Internet, they have a tendency to separate from our real world and immerse themselves into a virtual world. As a result, nothing is of no interest to them at all. Secondly, the Internet also exerts a strong influence on the efficiency of work,it makes neglect one's study  . Take students as an example, at class, they prefer to think about online video games, films,... rather than listening to what their teachers are sayingand it will causes mental disease . This will seriously result in their studying quality. Moreover, the dependence on the Internet can be a major obstacle to developing people’s creativity. Instead of thinking independently, people often take advantage of diverse sources of information on the Internet to finish their tasks as soon as possible. Using the internet too much is a waste of time Last but not least, our personal information can be leaked due to hackers or loose control of data security organizations. This can put us in dangerous and indirectly affect our life.Many personal information is leaking To put it briefly, the innovation of the Internet has contributed to improve every aspect of our life but we also should take its pros and cons into consideration whenever using it.