Based on a game model involved with contractual risk and misappropriation of innovative information,it is demonstrated that decisions on sharing information and investment decisions are distorted when the possibility of misappropriation exists,then a suggestion is put forward that the government should legislate strictly to prote.

In the market, the choice of the innovation-info communication and misappropriation between the supplier and the buyer affect their research and development (R & D) investments, income functions subsequently.

Based on a game model involved with contractual risk and misappropriation of innovative information,we demonstrate that decisions on sharing information and investment decisions are distorted when the possibility of misappropriation exists,and then put forward a suggestion that the government should legislate strictly to protect .

Based on the analysis of ARP, this paper discussed a software method of preventing IP address embezzlement with ARP spoofing, and it also presented the system model and practical environment.

The IP address resource was comparatively gone shor t of as the fast de velopment and wide usage of computer network, and IP address embezzlement had be en a great problem which influenced the network running.

IP address embezzlement is a common problem.

The IP address embezzlement is a serious problem in the campus net management.

IP address embezzlement is a universal problem in TCP/IP network, especially in CERNET.

Research and realization of campus network management system against IP address embezzlement;

An Overview of Identity Theft-Governance and Research Trend;

In this paper,the author analyzes the concept of identity theft,lists the main means of identity theft in the second part of the article.