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Glossary

A B C D E F G H I J K L M N O P Q R S T U V W X Z

N

National Broadband Network (NBN)

An Australian national wholesale open-access data network project. It includes wired and radio communication components rolled out and operated by NBN Co.

National Exercise Program

A program that uses exercises and other readiness activities that target strategic decision-making, operational and technical capabilities, strategic engagement and communications. Through these exercises the program can help broaden your understanding of the roles and responsibilities of key government agencies and private sector organisations when responding to a cyber security incident.

National Relay Service

A government service that allows people who are deaf, hard of hearing and/or have a speech impairment to make and receive phone calls.

NBN

National Broadband Network

NCSC

National Cyber Security Centre (UK)

NDA

Non-Disclosure Agreement

Need-to-know

The principle of restricting an individual’s access to only the information they require to fulfil the duties of their role.

Netscreen

Part of Juniper Networks

Network

Two or more computer systems linked together

Network access control

Security policies used to control access to a network and actions on a network. This can include authentication checks and authorisation controls.

Network device

ICT equipment designed to facilitate the communication of information.

Network infrastructure

The infrastructure used to carry information between workstations and servers or other network devices.

Network segmentation

Partitioning a network into smaller networks; compare with network segregation.

Network segregation

Developing and enforcing a rule set for controlling the communications between specific hosts and services; compare with network segmentation.

Networking

The linking of computers to allow them to operate interactively.

News

Newly received or noteworthy information, especially about recent events.

NFP

Not for profit

NIDS

Network-based Intrusion Detection System

NIPS

Network-based Intrusion Prevention System

NIST

National Institute of Standards and Technology

Non-disclosure agreement (NDA)

A contract by which one or more parties agree not to disclose confidential information that they have shared with each other as a necessary part of doing business together.

Non-repudiation

Providing proof that a user performed an action, and in doing so preventing a user from denying that they did so.

Non-shared government facility

A facility where the entire facility and personnel are cleared to the highest level of information processed in the facility.

Non-volatile media

A type of media which retains its information when power is removed.

Not for profit

An organisation that does not operate for the profit, personal gain or other benefit of particular people. Also called non-profit.

NRS

National Relay Service