However, under the barbaric growth, some social and moral problems rarely seen in traditional industries have also begun to highlight. In addition to the above suspected “eavesdropping” problems, personal information leakage, search and bidding ranking, manufacturing information cocoon room, and even diversion for pornography, gambling and drugs are normal. These phenomena not only damage the interests of users, but also touch the bottom line of public morality, making the Internet such a public space fall into the “tragedy of the commons”. < / P > < p > platform advertising chaos, gambling advertising solemnly boarded the platform. In fact, in addition to those behaviors that touch the bottom line, such as pornography, drugs and violence, some emerging information platforms are good at using algorithms to push accurately, and their potential harm cannot be underestimated. Professor sanstein of Harvard University has put forward the theory of information cocoon room through his investigation of the Internet, that is, people are habitually guided by their own interests, thus shackled their lives in the cocoon like “cocoon room”. The algorithmic thinking of information platform aggravates this phenomenon. Obviously, it has a quite negative effect on the improvement of personal thinking level and social progress, which is worthy of vigilance. Nowadays, with the popularity of mobile phones, the Internet has become an indispensable part of people’s daily life. In order to protect personal information security and protect public interests, this issue must be paid attention to. On the one hand, Internet enterprises must establish correct values, keep the bottom line of law and morality, strengthen self-discipline and internal management, and ensure the behaviors involved are legal, compliant and moral. On the other hand, the competent authorities should strengthen the supervision of Internet enterprises and platforms in accordance with the law and strengthen legislation to protect personal information, and timely “light sword” to Internet enterprises with illegal and immoral behaviors, and punish them according to law. Those who fail to correct after repeated education can even revoke relevant licenses.