In today's world, security is one of the most important quality attributes in Semantic Web. Semantic Web proposes new security requirements; therefore, previous security mechanisms provide insufficient support for an in-depth treatment of security in Semantic Web. This paper presents the mandatory role of privacy persevering method in access control model, inference and semantic data mining method and trust negotiation technique for applying in Semantic Web. We show the relation among them in order to secure Semantic Web. Privacy persevering method can prevent unauthorized access to confidential information and services further to being a hindrance for disclosure of private personal information.