A complex one layer security, when breached does not offer any further protection, leaving the system or network completely vulnerable. An example of layering may be that the files require users to authenticate using an ID and password as the first layer of security. Then the application running the file may have a separate ID and password authentication to be able to use the file, the second layer. Finally, users must have access to the directory containing the files and must be authorized to use them, a third layer. This type of security on the personal computer is possible with some operating systems such as Novell NetWare and Windows NT or Windows 2000.
Any user can gain access to the local machine if it can be turned on.
Clear any check boxes in the File and Print Sharing window. The next step in this phase of security is to implement measures which will assist in the proactive areas. Obtain and install some form of hardware or software interdiction program, i.e., a firewall. A firewall is generally defined as a device or program that prevents access to information. Think of a firewall as a brick wall built between buildings and the outside world.