Editing Mandatory access control (section)

=== Other OSes ===
[[FreeBSD]] supports ''Mandatory Access Control'', implemented as part of the TrustedBSD project. It was introduced in FreeBSD 5.0. Since FreeBSD 7.2, MAC support is enabled by default. The framework is extensible; various MAC modules implement policies such as [[Biba Integrity Model|Biba]] and [[multilevel security]].

Sun's [[Trusted Solaris]] uses a mandatory and system-enforced access control mechanism (MAC), where clearances and labels are used to enforce a security policy. However note that the capability to manage labels does not imply the kernel strength to operate in [[multilevel security]] mode{{Citation needed|date=November 2009}}. Access to the labels and control mechanisms are not{{Citation needed|date=November 2009}} robustly protected from corruption in protected domain maintained by a kernel. The applications a user runs are combined with the security label at which the user works in the session. Access to information, programs and devices are only weakly controlled{{Citation needed|date=November 2009}}.