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Security Dictionary
Can't tell 'smtp' from 'snmp'? Find the precise meaning of these and hundreds of other security-related terms in our convenient and up-to-date Security Dictionary.
multilevel secure (MLS)
(I) A class of system that has system resources (particularly
stored information) at more than one security level (i.e., has
different types of sensitive resources) and that permits
concurrent access by users who differ in security clearance and
need-to-know, but is able to prevent each user from accessing
resources for which the user lacks authorization.