Glossary M
Media Access Control
Message Authentication Code. See the following for more information: NIST SP 800-108. NIST SP 800-185. NIST SP 800-56C. An access control policy that is uniformly enforced across all subjects and ...
Mail Server
A host that provides “electronic post office” facilities. It stores incoming mail for distribution to users and forwards outgoing mail. The term may refer to ...
Masquerading
A type of threat action whereby an unauthorized entity gains access to a system or performs a malicious act by illegitimately posing as an authorized ...
Maximum Tolerable Downtime
The amount of time mission/business process can be disrupted without causing significant harm to the organization’s mission. See NIST SP 800-34 Rev. 1 for more information.
MITM Attack
Man in the Middle.An attack using active interception or eavesdropping. It uses a third computer to capture traffic sent between two other systems. See POODLE ...