Figures Figure 1 Security Check for MyFileAccessor's Constructor using System. This is really a meta-permission, as it governs use of the security infrastructure itself.
Controls read, write, and append access to individual files and directory trees.
Can also be used to restrict all access to the file system. Typically used when FileIOPermission is not granted. ReflectionPermission Allows expansion of normal reflection privileges. With this permission, you can enumerate all types in an assembly and their contents, including private members. The details of this permission are still being ironed out.