ABSTRACT
According to the statistical data of December 2013, the number of Internet users in China’s reached 0.618 billion. Overall, 93.1% enterprises and public institutions in China use computers in work and 83.2% of the computers are connected to the Internet[1]. People use the Internet to enjoy the convenience associated with it, but simultaneously, people are suering due to the influence of the vulnerability of the Internet. Any loophole in the network may become the entrance for the attack of the whole network.
