1. In a computer system, a method for creating a secured workspace within an existing operating system for allowing users to run applications in a secured manner, the method comprising: creating a policy for configuring the secured workspace, the policy specifying how information created during operation of the applications may be accessed; hooking particular functions of the operating system in order to obtain control over the information created during operation of the applications; during operation of the applications, encrypting the information to prevent unauthorized access; in response to a request for access to the information, determining whether the request complies with the policy; and if the request complies with the policy, satisfying the request by providing access to a decrypted copy of the information.