METHOD AND APPARATUS FOR IDENTIFYING APPLETS OF RISKY CONTENT BASED ON DIFFERENTIAL PRIVACY PRESERVING

Implementations of the present specification provide a method and an apparatus for identifying an applet of risky content based on differential privacy preserving. An example method includes: responsive to monitoring an operation performed by a user using an applet, determining whether an operation source is a risky operation source, the operation source including a combination of the user and a device used by the user; responsive to determining that the operation source is a risky operation source, disturbing a program identifier of the applet by using a randomized response technique that satisfies local differential privacy preserving; and sending an operation source identifier of the operation source and the disturbed program identifier to a serving end, so that the serving end identifies whether the applet is an applet of risky content based on multiple received disturbed program identifiers by using the randomized response technique.