Traffic processing method and protection system

Abstract

A method includes: A protection device obtains a local statistical result, where the local statistical result indicates frequent key data in first traffic, the local statistical result includes a plurality of entries, each of the plurality of entries includes one piece of key data and a corresponding count value, and the first traffic is traffic that passes, in a first time segment, through a network location in which the protection device is applied; the protection device replaces the key data of each entry in the local statistical result with masked data corresponding to the key data, to obtain a local masking result; and the protection device sends the local masking result to a security service server.

CPC Classifications