As an important node and business carrier in "big connection"

intelligent terminals and applications have direct or indirect contact with a large number of users’ sensitive privacy information. In recent years

APP forced authorization

excessive claim of rights

and over-range collection of personal information abound. The problem of illegal use of personal information is very prominent. The leakage of users’ privacy is getting worse and worse. Security and privacy issues have aroused widespread concern in society. This paper comprehensively sorts out and inspects APP privacy security risks from different sources

and innovatively proposes a privacy information detection and protection technology system of "static permission detection+dynamic behavior characteristics+network DPI intelligent analysis"

which realizes sensitive permission intelligent analysis

illegal claim dynamic monitoring

privacy leak detection and early warning

sensitive information depth tracking

ensures mobile application APP to be safe

credible and controllable

and protects the privacy security rights and interests of business units and users.