ResearchIndex Home P. Loscocco, S. Smalley, P. Muckelbauer, R. Taylor, J. Turner, and J. Farrell. Modules then export an interface that can be called by users. Extensions execute as user tasks, using the standard system protection mechanisms for safety.
Clients invoke extensions via the trusted path.
As the number of reports increases, awareness of the need for secure systems has grown rapidly. Providing good security is very difficult. Good solutions are complex enough to require more than one type of remedy and involve actions among various organizations that need to be closely coordinated in order to be effective. At best, firewalls provide protection from the 'casual attacker' who simply is trying to rattle doorknobs. In the worst case, firewalls give an organization a false sense of protection.