As a way of information transmission, the Internet brought convenience to people, but at the same time, there were some problems. Some of the questions included: 1. False information: Information on the Internet spreads very quickly. Some false information may mislead people's judgment and cause adverse effects. 2. Cyber violence: There are a large number of users on the Internet. They may make some bad comments or even carry out cyberattacks. These actions would cause serious harm to the victims and negatively affect society as a whole. 3. Leaking of privacy: The Internet is an open platform, and user information can be leaked to others. If users do not protect their privacy, their personal information may be leaked, resulting in adverse effects. Learning costs: The network is rich in information, but some information may not be suitable for beginners to learn and may even increase the cost of learning. To sum up, the problem of the network doing more harm than good does exist. We should try our best to protect our information from being affected by false information, and at the same time, be cautious about problems such as cyber violence and privacy leakage.