packet filtering

A firewall technology that accepts or rejects packets based on their content.

packet switching

The process of breaking messages into packets at the sending router for easier transmission over a WAN.


A number of characters often added to data before an operation such as hashing takes place. Most often unique values, known as one-time pads, are added to make the resulting hash unique.


See Password Authentication Protocol (PAP).


The process of breaking a network into smaller components that can be individually protected.

passive detection

A type of intruder detection that logs all network events to a file for an administrator to view later.

passive response

A nonactive response, such as logging. ...

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