WCF client passing username token with mustUnderstand set to true
问题 I'm tasked with creating a WCF service that will be consumed by an external client. The client is using WSSE security, specifically, they're passing a username token via a SOAP header. The WCF service is hosted on an IIS server with SSL enabled. At this point, I have a semi-working prototype. The issue I'm dealing with now is that the SOAP header has the mustUnderstand attribute set to 1, and this causes the process to fail. I'd like some advice (or better yet, a code example smiles ) on how