DATA PROTECTION METHOD AND DATA PROTECTION SYSTEM

The invention discloses a data protection method and a data protection system. The data protection method includes: detecting whether a web transmission behavior occurs or not; analyzing a transmitterand a first file of the web transmission behavior, wherein the transmitter is corresponding to a first application program, and the first file is corresponding to a first file characteristic; extracting a historical accessing record of the transmitter from a memory; extracting a second file characteristic of a second file from the memory in a state that the historical accessing record indicates that the transmitter accesses the second file of a second application program; comparing the first file characteristic with the second file characteristic, to generate a first similarity degree; and blocking the web transmission behavior according to the first similarity degree. Therefore, the method can prevent the first application program from transmitting the first file which is suspected to bethe second file to the ou