prostoalex writes "The Computer Science Department at the University of Virginia has published a comparative study of security in Java and .NET in Portable Document Format. DevMktg blog on MSDN summarizes the findings saying that due to careful design process, .NET presents security advantages over Java platform in several areas." From the article: "Where Java evolved from an initial platform with limited security capabilities, .NET incorporated more security capability into its original design. With age and new features, much of the legacy code of Java still remains for backwards compatibility including the possibility of a null SecurityManager, and the absolute trust of classes on the bootclasspath. Hence, in several areas .NET has security advantages over Java because of its simpler and cleaner design."