| (I) An attack that intercepts and accesses data and other
information contained in a flow in a communication system.
(C) Although the term originally referred to making a mechanical
connection to an electrical conductor that links two nodes, it is
now used to refer to reading information from any sort of medium
used for a link or even directly from a node, such as gateway or
subnetwork switch.
(C) "Active wiretapping" attempts to alter the data or otherwise
affect the flow; "passive wiretapping" only attempts to observe
the flow and gain knowledge of information it contains. (See:
active attack, end-to-end encryption, passive attack.)
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