| The widespread use of mobile Internet applications puts personal information in perpetual danger.Excessive collection and processing of users’ personal information has become a common phenomenon,and the real dilemma of personal information protection urgently needs to be resolved.Faced with the powerful analysis capabilities of big data,it is necessary to adopt a relatively expanded definition of personal information and expand the scope of personal information protection.Facing the dilemma of legal relief and consent mechanism,perfecting legal norms and application of law from the dual protection path of private law and public law is the inevitable choice to protect personal private law relief and improve the effect of supervision.At the same time,in the privacy policy,the content of consent is divided according to the principle of necessity,the scope of necessary information in the privacy policy need mandatory,and the general collection of non-essential information need prohibited.Mandatory requirement of the norms of necessary information combined with personal self-determination of non-essential information to achieve reasonable authorization of personal information.In the face of practical supervision difficulties,in order to obtain the actual effects of legal regulations,it is also necessary to give play to the supervisory role of individuals and society,as well as the role of technical means and social organizations.The main body of the article is divided into five parts.The first part mainly defines the scope of personal information and the relationship between personal information and privacy.The ability of big data analysis objectively improves the relevance and predictability of information.The more difficult it is to distinguish the sensitivity of information,it is more appropriate to expand the scope of the definition of personal information.There is a cross-competition relationship between personal information and privacy,and the use of relevant laws and regulations between the two should be coordinated in the protection of personal information.Emphasizes the necessity of personal information protection in this field based on the characteristics of mobile Internet applications.The second part analyze specific types and methods of infringement,and clarify the application of personal information protection principles.The third part is the analysis of the current situation and dilemma of personal information protection in mobile Internet applications.Insufficient laws and regulations,insufficient supervision,privacy policies in mobile Internet applications are generally unreasonable in form and content,and collection and use of user personal information beyond the necessary principles.The user’s awareness of prevention is not strong and is in a weak position relative to the information processor.The consent mechanism cannot really protect the user’s personal information.Operators have technical advantages,information processing is not transparent,and formal privacy policies or agreements are difficult to achieve substantial results.It is necessary to limit the scope of consent in the mobile Internet application.The fourth part compares the experience of personal information protection in Europe and the United States and the process of personal information legislation in Africa.Combining the personal information protection law with other legal norms to form a strict personal information legal protection system is an inevitable choice.The fifth part proposes solutions and exploration ideas for the problems of personal information protection in mobile Internet applications.It is necessary to build a complete and coordinated legal system to facilitate information subjects to safeguard their personal information interests in terms of rights;design and litigation systems,and to facilitate effective supervision by regulatory agencies.The protection of personal information in the field of mobile Internet is no longer an issue of individual user rights protection,but a general social issue that requires the joint efforts of all individuals.It is necessary to explore methods of personal information protection in terms of privacy policies,personal protection awareness,technical means,industry self-discipline,social organizations,etc.outside of legal norms.It may only be possible to achieve personal information protection in the context of big data under the joint action of all aspects.Effective protection of information. |