A type of wiretapping that is not active but
rather attempts merely to observe the traffic flow to gain desired knowledge,
whether it be snooping for a password or just logging traffic.
"Passive Wiretapping." YourDictionary, n.d. Web. 24 May 2018. <http://www.yourdictionary.com/passive-wiretapping>.
Passive Wiretapping. (n.d.). Retrieved May 24th, 2018, from http://www.yourdictionary.com/passive-wiretapping