The fourth part of my series on developing a grid solution using the new WS-Resource Transfer system is available now. In this tutorial, we look at both sides of the security session, in terms of using WS-RT as an aid to the authorization process and at combining WS-Security with WS-RT for secure resource exchange.Read: Building a grid system using WS-Resource Transfer, Part 4: Using WS-RT for grid monitoringRead past parts of the series: Read: Building a grid system using WS-Resource Transfer Series