ABSTRACT

Compartmentalization includes a full mandatory

access control implementation and several other

kernel-level hardening features:

Network stack separation Triggers for intrusion detection Control of “super user” privileges Principle of least privilege

In contrast, a patched OS is typically a commercial OS

from which the administrator turns off or removes all

unnecessary services and installs the latest security

patches from the OS vendor. A patched OS has had no

modifications made to the kernel source code to enhance

security.