MAC (Mandatory Access Control): Often used when Confidentiality is most important. Access to an
object is determined by labels and clearance, this is often used in the military or in organizations
where confidentiality is very important. Labels: Objects have Labels assigned to them, the subjects
clearance must dominate the objects label. The label is used to allow Subjects with the right
clearance access them. Labels are often more granular than just “Top Secret”, they can be “Top
Secret – Nuclear”.