Corporations are concerned with preventing unauthorized leakage of corporate intellectual property.
The network security perimeter surrounds the corporate network and occasionally includes machines at employee homes. Everything else is excluded. The security perimeter carefully controls the transfer of information and, in many instances, forbids all outward information flow. Academic institutions also face concerns about the security of computing resources and information. Academic research groups often need to maintain the privacy of research grant proposals, patent applications, ideas for future research, or results of research in progress.