In many mobile APPs, there is a problem of excessively collecting information, and it has aroused public doubts. Once users authorize the APP to collect this information, the most worrying issue is the security of private information. Security is almost impossible to achieve. In recent years, Facebook ’s leaked user incidents in the United States and the recent domestic “big kill” of big data can be described as the most basic telecommunications service providers. Operators have hundreds of millions of users. Of private data, once the problem occurs, the consequences are even more difficult to estimate. Can this be launched? ['It is necessary to regulate the collection and use of hidden information by mobile APPs and telecommunications operators.', 'Individuals must pay attention to information security and use mobile apps as little as possible.', 'Domestic internet users do not use Facebook, and do not register.', 'Countries and individuals must resist big data "kill" and regulate the collection and use of big data.']