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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.
guard
(I) A gateway that is interposed between two networks (or
computers, or other information systems) operating at different
security levels (one level is usually higher than the other) and
is trusted to mediate all information transfers between the two
levels, either to ensure that no sensitive information from the
first (higher) level is disclosed to the second (lower) level, or
to protect the integrity of data on the first (higher) level.
(See: firewall.)
