The namespace defines classes that control access to operations and resources based on policy.
|CodeAccessSecurityAttribute||Obsolete. Specifies the base attribute class for code access security.|
|SecurityAttribute||Obsolete. Specifies the base attribute class for declarative security from which the CodeAccessSecurityAttribute attribute is derived.|
|SecurityPermissionAttribute||Obsolete. Allows security actions to be applied to code by using declarative security. This class cannot be inherited.|