At present, domestic laws and regulations on the protection of personal information are scattered, lacking both a definition of personal information and an operable standard, the absence of law enforcement subjects, and insufficient enforcement of the law. As for the problems of personal information protection, industry discussions believe that there are three main aspects: protection The degree of definition is difficult to distinguish between legitimate or illegal use of personal information; information leakage and evidence collection, it is difficult to determine where the personal information is leaked; law enforcement efforts are unified, and it is difficult to ensure that the law enforcement standards of multiple regulatory entities are consistent. So, the key to personal information protection is? ['Ensuring the full circulation of information while avoiding misuse of personal information.', 'Combination of industry self-regulation and government supervision.', 'To form a certain degree of law enforcement deterrence.', 'To introduce special laws and regulations to protect personal information.']