So, I've come across this article which seemed to have been the answer to my problem, however, it doesn't seem to work in my implementation.
I have a bunch of services that I've exposed via EBWS (http://domain.com/ebws/category/service/someservice?wsdl), but I am never prompted for a login when adding the "globals" section to my jboss-esb.xml file. I am running ESB 4.8 on my server.
Sorry if this is the wrong place to post this inquiry.
Thanks.