SYSK 65: Change to Full Trust Definition in .NET 2.0
Did you know that full trust assemblies now satisfy any code access security demands? In the .NET Framework 2.0, any fully trusted assembly will satisfy any demand, including a link demand for an identity permission, such as a System.Security.Permissions.StrongNameIdentityPermission, that, otherwise, the assembly may not satisfy.
Also, since global assembly cache installation means full trust, i.e. assemblies in the global assembly cache are now always granted full trust regardless of the security policy for the local computer.
Source: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnpag2/html/PAGPractices0002.asp
