The difficulty of combating cybercrime is a problem faced by the world. Network technology is a double-edged sword, to promote economic development, facilitate people's lives at the same time, but also for the concealment of evidence, and even the destruction of criminal evidence to provide technical support. Electronic evidence is difficult to detect, collect, fix and identify, becoming a natural barrier to combat cybercrime.
Computer network technology is based on digital storage technology, digital transmission as the core technology development, therefore, computer information technology is also known as the "digital revolution". The use of digital signals, the computer's computing power, storage capacity, the network's ability to spread is no longer a multiple of the increase, but an exponential increase. In this sense, "number" is not only a computing power, but also a way of being. Cloud technology and big data is the most intuitive performance. Not only that, with the network technology updates, changes, accompanied by the birth of cybercrime also reflects the network's "digital" characteristics. For cybercrime, a focus on the "number" of characteristics is not conducive to the identification of the crime.