Security is the primary concern in the modern world. The main focus of this paper is the security of our information and its supporting infrastructure. By keeping the computer system secure we can provide the security to the computerized information and vital to that is the operating system.
In order to have a secure operating system it must be supported by the suitable computer architecture. If the technology from which the OS is built and on which it is supported is not secure then there is no confidentiality in the security of the OS and of the information it maintains for the users.
This is the short overview of OS Security. In this paper we will discuss about the security policies that can be supported by the system.