This is the 4th and last (but not least) post discussing the challenges in developing business RIA applications.
According to leading IT analysts, web applications and in particular Ajax RIA’s have become the most vulnerable elements of enterprise IT infrastructure. As an increasing number of organizations come to depend on rich Internet-based applications that leverage the power of AJAX, Silverlight Flash and the emerging HTML5 technologies, businesses must find ways to secure their web applications and protect sensitive data that may be exposed through the use of these technologies.
The post describes Visual WebGui "Empty Client" architecture as a great solution to avoid security volnurabilities and thus minimizes the need to search for security solutions as it is designed to simplify, enhance, and protect the deployment of complex, enterprise level applications.
Security - Overcoming Data-Centric RIA Challenges - Visual WebGui Blog