After the first announcement for the WCF Security Guidance Project , the amount of content has grown tremendously. Here's a summary of what's new over the last month. Seven new application scenarios: Intranet - Web to Remote WCF Using Transport Security (Trusted Subsystem TCP) Intranet - Web to Remote WCF Using Transport Security (Trusted Subsystem, HTTP) Intranet - Web to Remote WCF Using Transport Security (Original Caller, TCP) Intranet - Windows Forms to Remote WCF Using Transport Security (TCP) Internet - Web to Remote WCF Using Transport Security (Trusted Subsystem) Internet - Windows Forms Client Calling WCF Using Message Security Internet - WCF and ASMX Client to Remote WCF Using Transport Security (HTTP) More than eighty annotated guidelines . Six new how-to guides: How To - Perform Input Validation in WCF How To - Perform Message Validation with Schemas in WCF How To - Use basicHttpBinding with Windows Authentication and TransportCredentialOnly in WCF from Windows Forms How To - Use Certificate Authentication and Message Security in WCF calling from Windows Forms How To - Use netTcpBinding with Windows Authentication and Message Security in WCF from Windows Forms How To - Use wsHttpBinding with Username Authentication and TransportWithMessageCredential in WCF calling from Windows Forms Answers to more than one hundred security questions . Read More...