An attacker monitors information transmitted between logical or physical
						nodes of a network. The attacker need not be able to prevent reception or
						change content but must simply be able to observe and read the traffic. The
						attacker might precipitate or indirectly influence the content of the
						observed transaction, but the attacker is never the intended recipient of
						the information. Any transmission medium can theoretically be sniffed if the
						attacker can listen to the contents between the sender and recipient.