Passive pervasive attack

Definition
A passive pervasive attack is

{{Quote|[a]n eavesdropping attack undertaken by a pervasive attacker, in which the packets in a traffic stream between two endpoints are intercepted, but in which the attacker does not modify the packets in the traffic stream between two endpoints, modify the treatment of packets in the traffic stream (e.g. delay, routing), or add or remove packets in the traffic stream.

Overview
Passive pervasive attacks are undetectable from the end point.