what are the core security feature of WCF address?

There are four core security feature of WCF
1.)Confidentiality: It is ensure that information doesn't go in wrong hand when it travels from sender to receiver.
2.)Integrity: It ensure that the receiver get the same  information that sender sends without any change in data.
3.)Authentication: It verifies who is the sender and who is receiver.
4.)Authorization: It verifies that the user is authorized or not for performing the action they are requesting from the application.