K-anonymity is a primary method for guaranteeing the security of views,it can provide privacy protection and prevent information disclosure induced by joining attack.

How to Make a Project Decision on the Conditions of Information Leakage and Moral Hazard;

This paper studies on the relationship between the material nonpublic information leakage of Chinese listed companies and the external regulation environment and the internal features of their shares.

Starting from the incident of information leakage of the campus network, this paper discusses the reasons, the treating processes and the enlightenments of the event, and puts forward some suggestions and measures for the information security.

Considering this,the authoranalyses the inside story trade and the offense of disclosing inside story information in terms of criminal jurispru.

Which is about inside dealings and crime of divulging inside information,the article gives an overcall analyse from ojective aspect and subjective aspect.