What is labeled security and how does Solaris Trusted Extensions relate to it?
Labeling data based on its sensitivity and controlling access to that data based on the label is known as labeled security and is a capability introduced with the Solaris Trusted Extensions feature of the Solaris 10 Operating System. Because access to data, users, process, files, network packets, windows on the desktop and devices is enforced by the kernel and is based on the relationships of labels to each other, it is also known as a Mandatory Access Control (MAC) policy. Users and most privileged applications cannot override the Mandatory Access Control policy, ensuring a high degree of security to the system.