... proxy from external config fileConfigureProxy(serviceProxy);// Add the security token and request a signatureUsernameToken token = new UsernameToken("adg", "OpenSesame", ... Security StoryThe 2002 best practice was to build secure web services using an SSL (as in https) transportSSL encrypts all traffic between client and web server, so opaque to intermediaries:Messages ... PasswordOption.SendHashed);requestContext.Security.Tokens.Add(token);requestContext.Security.Elements.Add(new Signature(token));// Call the service Console.WriteLine("Calling {0}", serviceProxy.Url);int sum = serviceProxy.AddInt(a,...