Mac OSX, 10.4.11 through 10.8
To install Sophos software and get Brown's settings file, you must be connected to the Brown network or establish a VPN connection. It may take up to 24 hrs (during normal workdays) for the initial settings file to get to your computer. Your computer is protected once Sophos is installed, even though the Brown Settings File has not yet been applied.
Be sure to close all applications and verify that your operating system meets the system requirements.