As a registered member of SearchSOA.com, you're entitled to a complimentary copy of Chapter of Ajax in Action written by Dave Crane, Eric Pascarello and Darren James and published by Manning Publications. " Security and Ajax" focuses security implications with Ajax.
Many of the security issues that an Ajax application faces are the same as for a classical web application. We'll look at the security implications of shunting executable scripts around the network, and the steps that the browser vendors have taken to make this a safe experience. Second, we'll look at protecting a user's data when it is submitted to the server, allowing a user to work with our Ajax services. Finally, we'll focus on ways to secure the data services that our Ajax clients use to prevent them from being used illegitimately by external entities on the network.